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2210.16502
Xue-Ping Wang
Meng Li, Xue-Ping Wang
The solution set of fuzzy relation equations with addition-min composition
19
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
This paper deals with the resolutions of fuzzy relation equations with addition-min composition. When the fuzzy relation equations have a solution, we first propose an algorithm to find all minimal solutions of the fuzzy relation equations and also supply an algorithm to find all maximal solutions of the fuzzy relation equations, which will be illustrated, respectively, by numeral examples. Then we prove that every solution of the fuzzy relation equations is between a minimal solution and a maximal one, so that we describe the solution set of the fuzzy relation equations completely.
[ { "version": "v1", "created": "Sat, 29 Oct 2022 05:39:04 GMT" } ]
1,667,260,800,000
[ [ "Li", "Meng", "" ], [ "Wang", "Xue-Ping", "" ] ]
2211.00486
Robert R. Tucci
Robert R. Tucci
Causal DAG extraction from a library of books or videos/movies
11 pages
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Determining a causal DAG (directed acyclic graph) for a problem under consideration, is a major roadblock when doing Judea Pearl's Causal Inference (CI) in Statistics. The same problem arises when doing CI in Artificial Intelligence (AI) and Machine Learning (ML). As with many problems in Science, we think Nature has found an effective solution to this problem. We argue that human and animal brains contain an explicit engine for doing CI, and that such an engine uses as input an atlas (i.e., collection) of causal DAGs. We propose a simple algorithm for constructing such an atlas from a library of books or videos/movies. We illustrate our method by applying it to a database of randomly generated Tic-Tac-Toe games. The software used to generate this Tic-Tac-Toe example is open source and available at GitHub.
[ { "version": "v1", "created": "Sat, 29 Oct 2022 16:09:22 GMT" } ]
1,667,347,200,000
[ [ "Tucci", "Robert R.", "" ] ]
2211.00901
Lei Kou
Jian Wang, Xi Wang, Chaoqun Ma, Lei Kou
A survey on the development status and application prospects of knowledge graph in smart grids
IET Generation, Transmission & Distribution
null
10.1049/gtd2.12040
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the advent of the electric power big data era, semantic interoperability and interconnection of power data have received extensive attention. Knowledge graph technology is a new method describing the complex relationships between concepts and entities in the objective world, which is widely concerned because of its robust knowledge inference ability. Especially with the proliferation of measurement devices and exponential growth of electric power data empowers, electric power knowledge graph provides new opportunities to solve the contradictions between the massive power resources and the continuously increasing demands for intelligent applications. In an attempt to fulfil the potential of knowledge graph and deal with the various challenges faced, as well as to obtain insights to achieve business applications of smart grids, this work first presents a holistic study of knowledge-driven intelligent application integration. Specifically, a detailed overview of electric power knowledge mining is provided. Then, the overview of the knowledge graph in smart grids is introduced. Moreover, the architecture of the big knowledge graph platform for smart grids and critical technologies are described. Furthermore, this paper comprehensively elaborates on the application prospects leveraged by knowledge graph oriented to smart grids, power consumer service, decision-making in dispatching, and operation and maintenance of power equipment. Finally, issues and challenges are summarised.
[ { "version": "v1", "created": "Wed, 2 Nov 2022 05:57:05 GMT" } ]
1,667,433,600,000
[ [ "Wang", "Jian", "" ], [ "Wang", "Xi", "" ], [ "Ma", "Chaoqun", "" ], [ "Kou", "Lei", "" ] ]
2211.01496
Yu Zhang
Yu Zhang, Mitchell Bucklew
Max Markov Chain
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we introduce Max Markov Chain (MMC), a novel representation for a useful subset of High-order Markov Chains (HMCs) with sparse correlations among the states. MMC is parsimony while retaining the expressiveness of HMCs. Even though parameter optimization is generally intractable as with HMC approximate models, it has an analytical solution, better sample efficiency, and the desired spatial and computational advantages over HMCs and approximate HMCs. Simultaneously, efficient approximate solutions exist for this type of chains as we show empirically, which allow MMCs to scale to large domains where HMCs and approximate HMCs would struggle to perform. We compare MMC with HMC, first-order Markov chain, and an approximate HMC model in synthetic domains with various data types to demonstrate that MMC is a valuable alternative for modeling stochastic processes and has many potential applications.
[ { "version": "v1", "created": "Wed, 2 Nov 2022 21:50:54 GMT" } ]
1,667,520,000,000
[ [ "Zhang", "Yu", "" ], [ "Bucklew", "Mitchell", "" ] ]
2211.02849
Xiang Li
Hongmin Cai, Wenxiong Liao, Zhengliang Liu, Yiyang Zhang, Xiaoke Huang, Siqi Ding, Hui Ren, Zihao Wu, Haixing Dai, Sheng Li, Lingfei Wu, Ninghao Liu, Quanzheng Li, Tianming Liu, Xiang Li
Coarse-to-fine Knowledge Graph Domain Adaptation based on Distantly-supervised Iterative Training
null
null
10.1109/BIBM58861.2023.10385649
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Modern supervised learning neural network models require a large amount of manually labeled data, which makes the construction of domain-specific knowledge graphs time-consuming and labor-intensive. In parallel, although there has been much research on named entity recognition and relation extraction based on distantly supervised learning, constructing a domain-specific knowledge graph from large collections of textual data without manual annotations is still an urgent problem to be solved. In response, we propose an integrated framework for adapting and re-learning knowledge graphs from one coarse domain (biomedical) to a finer-define domain (oncology). In this framework, we apply distant-supervision on cross-domain knowledge graph adaptation. Consequently, no manual data annotation is required to train the model. We introduce a novel iterative training strategy to facilitate the discovery of domain-specific named entities and triples. Experimental results indicate that the proposed framework can perform domain adaptation and construction of knowledge graph efficiently.
[ { "version": "v1", "created": "Sat, 5 Nov 2022 08:16:38 GMT" }, { "version": "v2", "created": "Thu, 9 Mar 2023 01:29:46 GMT" } ]
1,707,350,400,000
[ [ "Cai", "Hongmin", "" ], [ "Liao", "Wenxiong", "" ], [ "Liu", "Zhengliang", "" ], [ "Zhang", "Yiyang", "" ], [ "Huang", "Xiaoke", "" ], [ "Ding", "Siqi", "" ], [ "Ren", "Hui", "" ], [ "Wu", "Zihao", "" ], [ "Dai", "Haixing", "" ], [ "Li", "Sheng", "" ], [ "Wu", "Lingfei", "" ], [ "Liu", "Ninghao", "" ], [ "Li", "Quanzheng", "" ], [ "Liu", "Tianming", "" ], [ "Li", "Xiang", "" ] ]
2211.02992
Ujwal Saini
Ujwal Saini
Foon Creation
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
We have designed three search methods for producing the task trees for the provided goal nodes using the Functional Object-Oriented Network. This paper details the strategy, the procedure, and the outcomes.
[ { "version": "v1", "created": "Sun, 6 Nov 2022 00:03:44 GMT" } ]
1,667,865,600,000
[ [ "Saini", "Ujwal", "" ] ]
2211.03219
Mikhail Genkin
Mikhail Genkin and J. J. McArthur
B-SMART: A Reference Architecture for Artificially Intelligent Autonomic Smart Buildings
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-sa/4.0/
The pervasive application of artificial intelligence and machine learning algorithms is transforming many industries and aspects of the human experience. One very important industry trend is the move to convert existing human dwellings to smart buildings, and to create new smart buildings. Smart buildings aim to mitigate climate change by reducing energy consumption and associated carbon emissions. To accomplish this, they leverage artificial intelligence, big data, and machine learning algorithms to learn and optimize system performance. These fields of research are currently very rapidly evolving and advancing, but there has been very little guidance to help engineers and architects working on smart buildings apply artificial intelligence algorithms and technologies in a systematic and effective manner. In this paper we present B-SMART: the first reference architecture for autonomic smart buildings. B-SMART facilitates the application of artificial intelligence techniques and technologies to smart buildings by decoupling conceptually distinct layers of functionality and organizing them into an autonomic control loop. We also present a case study illustrating how B-SMART can be applied to accelerate the introduction of artificial intelligence into an existing smart building.
[ { "version": "v1", "created": "Sun, 6 Nov 2022 20:56:25 GMT" } ]
1,667,865,600,000
[ [ "Genkin", "Mikhail", "" ], [ "McArthur", "J. J.", "" ] ]
2211.03461
Gavin Rens
Gavin Rens, Wen-Chi Yang, Jean-Fran\c{c}ois Raskin, Luc De Raedt
Learning Probabilistic Temporal Safety Properties from Examples in Relational Domains
25 pages, 3 figures, 5 tables, 2 algorithms, preprint
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a framework for learning a fragment of probabilistic computation tree logic (pCTL) formulae from a set of states that are labeled as safe or unsafe. We work in a relational setting and combine ideas from relational Markov Decision Processes with pCTL model-checking. More specifically, we assume that there is an unknown relational pCTL target formula that is satisfied by only safe states, and has a horizon of maximum $k$ steps and a threshold probability $\alpha$. The task then consists of learning this unknown formula from states that are labeled as safe or unsafe by a domain expert. We apply principles of relational learning to induce a pCTL formula that is satisfied by all safe states and none of the unsafe ones. This formula can then be used as a safety specification for this domain, so that the system can avoid getting into dangerous situations in future. Following relational learning principles, we introduce a candidate formula generation process, as well as a method for deciding which candidate formula is a satisfactory specification for the given labeled states. The cases where the expert knows and does not know the system policy are treated, however, much of the learning process is the same for both cases. We evaluate our approach on a synthetic relational domain.
[ { "version": "v1", "created": "Mon, 7 Nov 2022 11:24:53 GMT" } ]
1,667,865,600,000
[ [ "Rens", "Gavin", "" ], [ "Yang", "Wen-Chi", "" ], [ "Raskin", "Jean-François", "" ], [ "De Raedt", "Luc", "" ] ]
2211.03521
Alexis Jacq
Alexis Jacq, Manu Orsini, Gabriel Dulac-Arnold, Olivier Pietquin, Matthieu Geist, Olivier Bachem
On the importance of data collection for training general goal-reaching policies
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-sa/4.0/
Recent advances in ML suggest that the quantity of data available to a model is one of the primary bottlenecks to high performance. Although for language-based tasks there exist almost unlimited amounts of reasonably coherent data to train from, this is generally not the case for Reinforcement Learning, especially when dealing with a novel environment. In effect, even a relatively trivial continuous environment has an almost limitless number of states, but simply sampling random states and actions will likely not provide transitions that are interesting or useful for any potential downstream task. How should one generate massive amounts of useful data given only an MDP with no indication of downstream tasks? Are the quantity and quality of data truly transformative to the performance of a general controller? We propose to answer both of these questions. First, we introduce a principled unsupervised exploration method, ChronoGEM, which aims to achieve uniform coverage over the manifold of achievable states, which we believe is the most reasonable goal given no prior task information. Secondly, we investigate the effects of both data quantity and data quality on the training of a downstream goal-achievement policy, and show that both large quantities and high-quality of data are essential to train a general controller: a high-precision pose-achievement policy capable of attaining a large number of poses over numerous continuous control embodiments including humanoid.
[ { "version": "v1", "created": "Mon, 7 Nov 2022 13:02:40 GMT" }, { "version": "v2", "created": "Mon, 20 Feb 2023 14:28:14 GMT" } ]
1,676,937,600,000
[ [ "Jacq", "Alexis", "" ], [ "Orsini", "Manu", "" ], [ "Dulac-Arnold", "Gabriel", "" ], [ "Pietquin", "Olivier", "" ], [ "Geist", "Matthieu", "" ], [ "Bachem", "Olivier", "" ] ]
2211.03612
Ming Liu
Ming Liu, Yaojia LV, Jingrun Zhang, Ruiji Fu, Bing Qin
BigCilin: An Automatic Chinese Open-domain Knowledge Graph with Fine-grained Hypernym-Hyponym Relations
5 pages, 3 figures
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents BigCilin, the first Chinese open-domain knowledge graph with fine-grained hypernym-hyponym re-lations which are extracted automatically from multiple sources for Chinese named entities. With the fine-grained hypernym-hyponym relations, BigCilin owns flexible semantic hierarchical structure. Since the hypernym-hyponym paths are automati-cally generated and one entity may have several senses, we provide a path disambi-guation solution to map a hypernym-hyponym path of one entity to its one sense on the condition that the path and the sense express the same meaning. In order to conveniently access our BigCilin Knowle-dge graph, we provide web interface in two ways. One is that it supports querying any Chinese named entity and browsing the extracted hypernym-hyponym paths surro-unding the query entity. The other is that it gives a top-down browsing view to illust-rate the overall hierarchical structure of our BigCilin knowledge graph over some sam-pled entities.
[ { "version": "v1", "created": "Mon, 7 Nov 2022 15:05:01 GMT" } ]
1,667,865,600,000
[ [ "Liu", "Ming", "" ], [ "LV", "Yaojia", "" ], [ "Zhang", "Jingrun", "" ], [ "Fu", "Ruiji", "" ], [ "Qin", "Bing", "" ] ]
2211.03831
Lucas Caccia
Lucas Caccia, Edoardo Ponti, Zhan Su, Matheus Pereira, Nicolas Le Roux, Alessandro Sordoni
Multi-Head Adapter Routing for Cross-Task Generalization
Accepted at NeurIPS 2023. Code is available at https://github.com/microsoft/mttl
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Parameter-efficient fine-tuning (PEFT) for cross-task generalization consists in pre-training adapters on a multi-task training set before few-shot adaptation to test tasks. Polytropon [Ponti et al., 2023] ($\texttt{Poly}$) jointly learns an inventory of adapters and a routing function that selects a (variable-size) subset of adapters for each task during both pre-training and few-shot adaptation. In this paper, we investigate the role that adapter routing plays in its success and design new variants based on our findings. First, we build on the intuition that finer-grained routing provides more expressivity. Hence, we propose $\texttt{MHR}$ (Multi-Head Routing) which combines subsets of adapter parameters and outperforms $\texttt{Poly}$ under a comparable parameter budget; by only fine-tuning the routing function and not the adapters ($\texttt{MHR}$-$z$) we achieve competitive performance with extreme parameter efficiency. Second, we find that $\texttt{Poly}$/$\texttt{MHR}$ performance is a result of better multi-task optimization, rather than modular inductive biases that facilitate adapter recombination and local adaptation, as previously hypothesized. In fact, we find that $\texttt{MHR}$ exhibits high gradient alignment between training tasks. We find that routing is most beneficial during multi-task pre-training rather than during few-shot adaptation and propose $\texttt{MHR}$-$\mu$, which discards routing and fine-tunes the average of the pre-trained adapters on each downstream tasks. This establishes $\texttt{MHR}$-$\mu$ as an effective method for single-adapter fine-tuning. We also show that $\texttt{MHR}$-$\mu$ can be used as an effective zero-shot transfer method by training the average of the pre-trained adapters for a few additional steps on the multi-task training set: this yields gains up to 3% on absolute accuracy w.r.t. the baselines.
[ { "version": "v1", "created": "Mon, 7 Nov 2022 19:35:55 GMT" }, { "version": "v2", "created": "Mon, 26 Jun 2023 19:08:25 GMT" }, { "version": "v3", "created": "Mon, 13 Nov 2023 15:09:59 GMT" } ]
1,699,920,000,000
[ [ "Caccia", "Lucas", "" ], [ "Ponti", "Edoardo", "" ], [ "Su", "Zhan", "" ], [ "Pereira", "Matheus", "" ], [ "Roux", "Nicolas Le", "" ], [ "Sordoni", "Alessandro", "" ] ]
2211.03888
Shiqing Wu
Qing Liu, Wenli Yang, Shiqing Wu
Proceedings of Principle and practice of data and Knowledge Acquisition Workshop 2022 (PKAW 2022)
Proceedings of Principle and practice of data and Knowledge Acquisition Workshop 2022 (PKAW 2022)
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Over the past two decades, PKAW has provided a forum for researchers and practitioners to discuss the state-of-the-arts in the area of knowledge acquisition and machine intelligence (MI, also Artificial Intelligence, AI). PKAW2022 will continue the above focus and welcome the contributions on the multi-disciplinary approach of human and big data-driven knowledge acquisition, as well as AI techniques and applications.
[ { "version": "v1", "created": "Mon, 7 Nov 2022 22:34:12 GMT" }, { "version": "v2", "created": "Wed, 7 Dec 2022 05:05:07 GMT" } ]
1,670,457,600,000
[ [ "Liu", "Qing", "" ], [ "Yang", "Wenli", "" ], [ "Wu", "Shiqing", "" ] ]
2211.03890
Carlos Correa
Carlos G. Correa, Mark K. Ho, Frederick Callaway, Nathaniel D. Daw, Thomas L. Griffiths
Humans decompose tasks by trading off utility and computational cost
null
null
10.1371/journal.pcbi.1011087
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Human behavior emerges from planning over elaborate decompositions of tasks into goals, subgoals, and low-level actions. How are these decompositions created and used? Here, we propose and evaluate a normative framework for task decomposition based on the simple idea that people decompose tasks to reduce the overall cost of planning while maintaining task performance. Analyzing 11,117 distinct graph-structured planning tasks, we find that our framework justifies several existing heuristics for task decomposition and makes predictions that can be distinguished from two alternative normative accounts. We report a behavioral study of task decomposition ($N=806$) that uses 30 randomly sampled graphs, a larger and more diverse set than that of any previous behavioral study on this topic. We find that human responses are more consistent with our framework for task decomposition than alternative normative accounts and are most consistent with a heuristic -- betweenness centrality -- that is justified by our approach. Taken together, our results provide new theoretical insight into the computational principles underlying the intelligent structuring of goal-directed behavior.
[ { "version": "v1", "created": "Mon, 7 Nov 2022 22:45:46 GMT" } ]
1,685,923,200,000
[ [ "Correa", "Carlos G.", "" ], [ "Ho", "Mark K.", "" ], [ "Callaway", "Frederick", "" ], [ "Daw", "Nathaniel D.", "" ], [ "Griffiths", "Thomas L.", "" ] ]
2211.03943
Lynette Hirschman
Matthew Peterson, Tonia Korves, Christopher Garay, Robyn Kozierok and Lynette Hirschman
Final Report on MITRE Evaluations for the DARPA Big Mechanism Program
46 pages, 8 figures
null
null
MTR180593
cs.AI
http://creativecommons.org/licenses/by-nc-nd/4.0/
This report presents the evaluation approach developed for the DARPA Big Mechanism program, which aimed at developing computer systems that will read research papers, integrate the information into a computer model of cancer mechanisms, and frame new hypotheses. We employed an iterative, incremental approach to the evaluation of the three phases of the program. In Phase I, we evaluated the ability of system and human teams ability to read-with-a-model to capture mechanistic information from the biomedical literature, integrated with information from expert curated biological databases. In Phase II we evaluated the ability of systems to assemble fragments of information into a mechanistic model. The Phase III evaluation focused on the ability of systems to provide explanations of experimental observations based on models assembled (largely automatically) by the Big Mechanism process. The evaluation for each phase built on earlier evaluations and guided developers towards creating capabilities for the new phase. The report describes our approach, including innovations such as a reference set (a curated data set limited to major findings of each paper) to assess the accuracy of systems in extracting mechanistic findings in the absence of a gold standard, and a method to evaluate model-based explanations of experimental data. Results of the evaluation and supporting materials are included in the appendices.
[ { "version": "v1", "created": "Tue, 8 Nov 2022 01:37:07 GMT" } ]
1,667,952,000,000
[ [ "Peterson", "Matthew", "" ], [ "Korves", "Tonia", "" ], [ "Garay", "Christopher", "" ], [ "Kozierok", "Robyn", "" ], [ "Hirschman", "Lynette", "" ] ]
2211.03950
Qian Li
Qian Li, Shafiq Joty, Daling Wang, Shi Feng and Yifei Zhang
Alleviating Sparsity of Open Knowledge Graphs with Ternary Contrastive Learning
null
EMNLP Findings 2022
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-sa/4.0/
Sparsity of formal knowledge and roughness of non-ontological construction make sparsity problem particularly prominent in Open Knowledge Graphs (OpenKGs). Due to sparse links, learning effective representation for few-shot entities becomes difficult. We hypothesize that by introducing negative samples, a contrastive learning (CL) formulation could be beneficial in such scenarios. However, existing CL methods model KG triplets as binary objects of entities ignoring the relation-guided ternary propagation patterns and they are too generic, i.e., they ignore zero-shot, few-shot and synonymity problems that appear in OpenKGs. To address this, we propose TernaryCL, a CL framework based on ternary propagation patterns among head, relation and tail. TernaryCL designs Contrastive Entity and Contrastive Relation to mine ternary discriminative features with both negative entities and relations, introduces Contrastive Self to help zero- and few-shot entities learn discriminative features, Contrastive Synonym to model synonymous entities, and Contrastive Fusion to aggregate graph features from multiple paths. Extensive experiments on benchmarks demonstrate the superiority of TernaryCL over state-of-the-art models.
[ { "version": "v1", "created": "Tue, 8 Nov 2022 01:52:05 GMT" } ]
1,667,952,000,000
[ [ "Li", "Qian", "" ], [ "Joty", "Shafiq", "" ], [ "Wang", "Daling", "" ], [ "Feng", "Shi", "" ], [ "Zhang", "Yifei", "" ] ]
2211.04009
Liang Peng
Liang Peng, Boqi Li, Wenhao Yu, Kai Yang, Wenbo Shao, and Hong Wang
SOTIF Entropy: Online SOTIF Risk Quantification and Mitigation for Autonomous Driving
16 pages, 10 figures, 2 tables, submitted to IEEE TITS
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-sa/4.0/
Autonomous driving confronts great challenges in complex traffic scenarios, where the risk of Safety of the Intended Functionality (SOTIF) can be triggered by the dynamic operational environment and system insufficiencies. The SOTIF risk is reflected not only intuitively in the collision risk with objects outside the autonomous vehicles (AVs), but also inherently in the performance limitation risk of the implemented algorithms themselves. How to minimize the SOTIF risk for autonomous driving is currently a critical, difficult, and unresolved issue. Therefore, this paper proposes the "Self-Surveillance and Self-Adaption System" as a systematic approach to online minimize the SOTIF risk, which aims to provide a systematic solution for monitoring, quantification, and mitigation of inherent and external risks. The core of this system is the risk monitoring of the implemented artificial intelligence algorithms within the AV. As a demonstration of the Self-Surveillance and Self-Adaption System, the risk monitoring of the perception algorithm, i.e., YOLOv5 is highlighted. Moreover, the inherent perception algorithm risk and external collision risk are jointly quantified via SOTIF entropy, which is then propagated downstream to the decision-making module and mitigated. Finally, several challenging scenarios are demonstrated, and the Hardware-in-the-Loop experiments are conducted to verify the efficiency and effectiveness of the system. The results demonstrate that the Self-Surveillance and Self-Adaption System enables dependable online monitoring, quantification, and mitigation of SOTIF risk in real-time critical traffic environments.
[ { "version": "v1", "created": "Tue, 8 Nov 2022 05:02:12 GMT" } ]
1,667,952,000,000
[ [ "Peng", "Liang", "" ], [ "Li", "Boqi", "" ], [ "Yu", "Wenhao", "" ], [ "Yang", "Kai", "" ], [ "Shao", "Wenbo", "" ], [ "Wang", "Hong", "" ] ]
2211.04313
Subarna Roy
Shubham, Avinash Arya, Subarna Roy, Sridhar Jonnala
An Ensemble-based approach for assigning text to correct Harmonized system code
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Industries must follow government rules and regulations around the world to classify products when assessing duties and taxes for international shipment. Harmonized System (HS) is the most standardized numerical method of classifying traded products among industry classification systems. A hierarchical ensemble model comprising of Bert-transformer, NER, distance-based approaches, and knowledge-graphs have been developed to address scalability, coverage, ability to capture nuances, automation and auditing requirements when classifying unknown text-descriptions as per HS method.
[ { "version": "v1", "created": "Tue, 8 Nov 2022 15:32:36 GMT" } ]
1,667,952,000,000
[ [ "Shubham", "", "" ], [ "Arya", "Avinash", "" ], [ "Roy", "Subarna", "" ], [ "Jonnala", "Sridhar", "" ] ]
2211.04976
Emin Nakilcioglu
Emin Nakilcioglu, Anisa Rizvanolli und Olaf Rendel
Workload Forecasting of a Logistic Node Using Bayesian Neural Networks
null
Proceedings of the Hamburg International Conference of Logistics 33 (2022) 237-264
10.15480/882.4694
null
cs.AI
http://creativecommons.org/licenses/by-sa/4.0/
Purpose: Traffic volume in empty container depots has been highly volatile due to external factors. Forecasting the expected container truck traffic along with having a dynamic module to foresee the future workload plays a critical role in improving the work efficiency. This paper studies the relevant literature and designs a forecasting model addressing the aforementioned issues. Methodology: The paper develops a forecasting model to predict hourly work and traffic volume of container trucks in an empty container depot using a Bayesian Neural Network based model. Furthermore, the paper experiments with datasets with different characteristics to assess the model's forecasting range for various data sources. Findings: The real data of an empty container depot is utilized to develop a forecasting model and to later verify the capabilities of the model. The findings show the performance validity of the model and provide the groundwork to build an effective traffic and workload planning system for the empty container depot in question. Originality: This paper proposes a Bayesian deep learning-based forecasting model for traffic and workload of an empty container depot using real-world data. This designed and implemented forecasting model offers a solution with which every actor in the container truck transportation benefits from the optimized workload.
[ { "version": "v1", "created": "Wed, 9 Nov 2022 15:42:33 GMT" } ]
1,668,038,400,000
[ [ "Nakilcioglu", "Emin", "" ], [ "Rendel", "Anisa Rizvanolli und Olaf", "" ] ]
2211.05180
Sanda-Maria Avram Dr.
Sanda Maria Avram and Mihai Oltean
A comparison of several AI techniques for authorship attribution on Romanian texts
We initially used the Accuracy evaluation tool to compute the macro-accuracy, obtaining a value of 88.84%. We, thereafter discovered that this value was erroneous and used other methods which gave us the value of 80.94% for the macro-accuracy. In this version of the paper we present the python module solution by using sklearn.metrics's classification_report and balanced_accuracy_score
Mathematics 2022, 10(23), 4589
10.3390/math10234589
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Determining the author of a text is a difficult task. Here we compare multiple AI techniques for classifying literary texts written by multiple authors by taking into account a limited number of speech parts (prepositions, adverbs, and conjunctions). We also introduce a new dataset composed of texts written in the Romanian language on which we have run the algorithms. The compared methods are Artificial Neural Networks, Support Vector Machines, Multi Expression Programming, Decision Trees with C5.0, and k-Nearest Neighbour. Numerical experiments show, first of all, that the problem is difficult, but some algorithms are able to generate decent errors on the test set.
[ { "version": "v1", "created": "Wed, 9 Nov 2022 20:24:48 GMT" }, { "version": "v2", "created": "Sat, 21 Jan 2023 10:53:55 GMT" } ]
1,674,604,800,000
[ [ "Avram", "Sanda Maria", "" ], [ "Oltean", "Mihai", "" ] ]
2211.05423
Motahare Namakin
Motahare Namakin, Modjtaba Rouhani, Mostafa Sabzekar
A metaheuristic multi-objective interaction-aware feature selection method
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Multi-objective feature selection is one of the most significant issues in the field of pattern recognition. It is challenging because it maximizes the classification performance and, at the same time, minimizes the number of selected features, and the mentioned two objectives are usually conflicting. To achieve a better Pareto optimal solution, metaheuristic optimization methods are widely used in many studies. However, the main drawback is the exploration of a large search space. Another problem with multi-objective feature selection approaches is the interaction between features. Selecting correlated features has negative effect on classification performance. To tackle these problems, we present a novel multi-objective feature selection method that has several advantages. Firstly, it considers the interaction between features using an advanced probability scheme. Secondly, it is based on the Pareto Archived Evolution Strategy (PAES) method that has several advantages such as simplicity and its speed in exploring the solution space. However, we improve the structure of PAES in such a way that generates the offsprings, intelligently. Thus, the proposed method utilizes the introduced probability scheme to produce more promising offsprings. Finally, it is equipped with a novel strategy that guides it to find the optimum number of features through the process of evolution. The experimental results show a significant improvement in finding the optimal Pareto front compared to state-of-the-art methods on different real-world datasets.
[ { "version": "v1", "created": "Thu, 10 Nov 2022 08:56:48 GMT" } ]
1,668,124,800,000
[ [ "Namakin", "Motahare", "" ], [ "Rouhani", "Modjtaba", "" ], [ "Sabzekar", "Mostafa", "" ] ]
2211.05457
Anguo Dong
Anguo Dong, Cuiyun Gao, Yan Jia, Qing Liao, Xuan Wang, Lei Wang, and Jing Xiao
Syntax-Guided Domain Adaptation for Aspect-based Sentiment Analysis
I want to withdraw this article due to personal reason
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Aspect-based sentiment analysis (ABSA) aims at extracting opinionated aspect terms in review texts and determining their sentiment polarities, which is widely studied in both academia and industry. As a fine-grained classification task, the annotation cost is extremely high. Domain adaptation is a popular solution to alleviate the data deficiency issue in new domains by transferring common knowledge across domains. Most cross-domain ABSA studies are based on structure correspondence learning (SCL), and use pivot features to construct auxiliary tasks for narrowing down the gap between domains. However, their pivot-based auxiliary tasks can only transfer knowledge of aspect terms but not sentiment, limiting the performance of existing models. In this work, we propose a novel Syntax-guided Domain Adaptation Model, named SDAM, for more effective cross-domain ABSA. SDAM exploits syntactic structure similarities for building pseudo training instances, during which aspect terms of target domain are explicitly related to sentiment polarities. Besides, we propose a syntax-based BERT mask language model for further capturing domain-invariant features. Finally, to alleviate the sentiment inconsistency issue in multi-gram aspect terms, we introduce a span-based joint aspect term and sentiment analysis module into the cross-domain End2End ABSA. Experiments on five benchmark datasets show that our model consistently outperforms the state-of-the-art baselines with respect to Micro-F1 metric for the cross-domain End2End ABSA task.
[ { "version": "v1", "created": "Thu, 10 Nov 2022 10:09:33 GMT" }, { "version": "v2", "created": "Wed, 16 Aug 2023 02:58:59 GMT" } ]
1,692,230,400,000
[ [ "Dong", "Anguo", "" ], [ "Gao", "Cuiyun", "" ], [ "Jia", "Yan", "" ], [ "Liao", "Qing", "" ], [ "Wang", "Xuan", "" ], [ "Wang", "Lei", "" ], [ "Xiao", "Jing", "" ] ]
2211.05939
Ayal Taitler
Ayal Taitler, Michael Gimelfarb, Jihwan Jeong, Sriram Gopalakrishnan, Martin Mladenov, Xiaotian Liu, Scott Sanner
pyRDDLGym: From RDDL to Gym Environments
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
We present pyRDDLGym, a Python framework for auto-generation of OpenAI Gym environments from RDDL declerative description. The discrete time step evolution of variables in RDDL is described by conditional probability functions, which fits naturally into the Gym step scheme. Furthermore, since RDDL is a lifted description, the modification and scaling up of environments to support multiple entities and different configurations becomes trivial rather than a tedious process prone to errors. We hope that pyRDDLGym will serve as a new wind in the reinforcement learning community by enabling easy and rapid development of benchmarks due to the unique expressive power of RDDL. By providing explicit access to the model in the RDDL description, pyRDDLGym can also facilitate research on hybrid approaches for learning from interaction while leveraging model knowledge. We present the design and built-in examples of pyRDDLGym, and the additions made to the RDDL language that were incorporated into the framework.
[ { "version": "v1", "created": "Fri, 11 Nov 2022 00:58:16 GMT" }, { "version": "v2", "created": "Mon, 14 Nov 2022 19:55:56 GMT" }, { "version": "v3", "created": "Fri, 16 Dec 2022 23:43:52 GMT" }, { "version": "v4", "created": "Wed, 19 Jul 2023 14:40:45 GMT" }, { "version": "v5", "created": "Tue, 6 Feb 2024 00:25:23 GMT" } ]
1,707,264,000,000
[ [ "Taitler", "Ayal", "" ], [ "Gimelfarb", "Michael", "" ], [ "Jeong", "Jihwan", "" ], [ "Gopalakrishnan", "Sriram", "" ], [ "Mladenov", "Martin", "" ], [ "Liu", "Xiaotian", "" ], [ "Sanner", "Scott", "" ] ]
2211.06011
Yuanyuan Tian
Yuanyuan Tian, Wenwen Li
GeoAI for Knowledge Graph Construction: Identifying Causality Between Cascading Events to Support Environmental Resilience Research
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Knowledge graph technology is considered a powerful and semantically enabled solution to link entities, allowing users to derive new knowledge by reasoning data according to various types of reasoning rules. However, in building such a knowledge graph, events modeling, such as that of disasters, is often limited to single, isolated events. The linkages among cascading events are often missing in existing knowledge graphs. This paper introduces our GeoAI (Geospatial Artificial Intelligence) solutions to identify causality among events, in particular, disaster events, based on a set of spatially and temporally-enabled semantic rules. Through a use case of causal disaster events modeling, we demonstrated how these defined rules, including theme-based identification of correlated events, spatiotemporal co-occurrence constraint, and text mining of event metadata, enable the automatic extraction of causal relationships between different events. Our solution enriches the event knowledge base and allows for the exploration of linked cascading events in large knowledge graphs, therefore empowering knowledge query and discovery.
[ { "version": "v1", "created": "Fri, 11 Nov 2022 05:31:03 GMT" } ]
1,668,384,000,000
[ [ "Tian", "Yuanyuan", "" ], [ "Li", "Wenwen", "" ] ]
2211.06154
Ivan Sevillano-Garc\'ia
Iv\'an Sevillano-Garc\'ia, Juli\'an Luengo-Mart\'in and Francisco Herrera
REVEL Framework to measure Local Linear Explanations for black-box models: Deep Learning Image Classification case of study
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Explainable artificial intelligence is proposed to provide explanations for reasoning performed by an Artificial Intelligence. There is no consensus on how to evaluate the quality of these explanations, since even the definition of explanation itself is not clear in the literature. In particular, for the widely known Local Linear Explanations, there are qualitative proposals for the evaluation of explanations, although they suffer from theoretical inconsistencies. The case of image is even more problematic, where a visual explanation seems to explain a decision while detecting edges is what it really does. There are a large number of metrics in the literature specialized in quantitatively measuring different qualitative aspects so we should be able to develop metrics capable of measuring in a robust and correct way the desirable aspects of the explanations. In this paper, we propose a procedure called REVEL to evaluate different aspects concerning the quality of explanations with a theoretically coherent development. This procedure has several advances in the state of the art: it standardizes the concepts of explanation and develops a series of metrics not only to be able to compare between them but also to obtain absolute information regarding the explanation itself. The experiments have been carried out on image four datasets as benchmark where we show REVEL's descriptive and analytical power.
[ { "version": "v1", "created": "Fri, 11 Nov 2022 12:15:36 GMT" } ]
1,668,384,000,000
[ [ "Sevillano-García", "Iván", "" ], [ "Luengo-Martín", "Julián", "" ], [ "Herrera", "Francisco", "" ] ]
2211.06402
Anjana Wijekoon
Anjana Wijekoon and David Corsar and Nirmalie Wiratunga
Behaviour Trees for Creating Conversational Explanation Experiences
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
This paper presented an XAI system specification and an interactive dialogue model to facilitate the creation of Explanation Experiences (EE). Such specifications combine the knowledge of XAI, domain and system experts of a use case to formalise target user groups and their explanation needs and to implement explanation strategies to address those needs. Formalising the XAI system promotes the reuse of existing explainers and known explanation needs that can be refined and evolved over time using user evaluation feedback. The abstract EE dialogue model formalised the interactions between a user and an XAI system. The resulting EE conversational chatbot is personalised to an XAI system at run-time using the knowledge captured in its XAI system specification. This seamless integration is enabled by using Behaviour Trees (BT) to conceptualise both the EE dialogue model and the explanation strategies. In the evaluation, we discussed several desirable properties of using BTs over traditionally used STMs or FSMs. BTs promote the reusability of dialogue components through the hierarchical nature of the design. Sub-trees are modular, i.e. a sub-tree is responsible for a specific behaviour, which can be designed in different levels of granularity to improve human interpretability. The EE dialogue model consists of abstract behaviours needed to capture EE, accordingly, it can be implemented as a conversational, graphical or text-based interface which caters to different domains and users. There is a significant computational cost when using BTs for modelling dialogue, which we mitigate by using memory. Overall, we find that the ability to create robust conversational pathways dynamically makes BTs a good candidate for designing and implementing conversation for creating explanation experiences.
[ { "version": "v1", "created": "Fri, 11 Nov 2022 18:39:38 GMT" }, { "version": "v2", "created": "Fri, 6 Jan 2023 10:01:49 GMT" } ]
1,673,222,400,000
[ [ "Wijekoon", "Anjana", "" ], [ "Corsar", "David", "" ], [ "Wiratunga", "Nirmalie", "" ] ]
2211.06561
Peter Love E.D
Peter ED Love, Jane Matthews, Weili Fang, Stuart Porter, Hanbin Luo and Lieyun Ding
Explainable Artificial Intelligence in Construction: The Content, Context, Process, Outcome Evaluation Framework
43 pages, 5 figures
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Explainable artificial intelligence is an emerging and evolving concept. Its impact on construction, though yet to be realised, will be profound in the foreseeable future. Still, XAI has received limited attention in construction. As a result, no evaluation frameworks have been propagated to enable construction organisations to understand the what, why, how, and when of XAI. Our paper aims to fill this void by developing a content, context, process, and outcome evaluation framework that can be used to justify the adoption and effective management of XAI. After introducing and describing this novel framework, we discuss its implications for future research. While our novel framework is conceptual, it provides a frame of reference for construction organisations to make headway toward realising XAI business value and benefits.
[ { "version": "v1", "created": "Sat, 12 Nov 2022 03:50:14 GMT" } ]
1,668,470,400,000
[ [ "Love", "Peter ED", "" ], [ "Matthews", "Jane", "" ], [ "Fang", "Weili", "" ], [ "Porter", "Stuart", "" ], [ "Luo", "Hanbin", "" ], [ "Ding", "Lieyun", "" ] ]
2211.06579
Peter Love E.D
Peter ED Love, Weili Fang, Jane Matthews, Stuart Porter, Hanbin Luo, and Lieyun Ding
Explainable Artificial Intelligence: Precepts, Methods, and Opportunities for Research in Construction
56 pages, 3 figures. arXiv admin note: text overlap with arXiv:1910.10045 by other authors
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Explainable artificial intelligence has received limited attention in construction despite its growing importance in various other industrial sectors. In this paper, we provide a narrative review of XAI to raise awareness about its potential in construction. Our review develops a taxonomy of the XAI literature comprising its precepts and approaches. Opportunities for future XAI research focusing on stakeholder desiderata and data and information fusion are identified and discussed. We hope the opportunities we suggest stimulate new lines of inquiry to help alleviate the scepticism and hesitancy toward AI adoption and integration in construction.
[ { "version": "v1", "created": "Sat, 12 Nov 2022 05:47:42 GMT" }, { "version": "v2", "created": "Sat, 11 Feb 2023 02:38:17 GMT" } ]
1,676,332,800,000
[ [ "Love", "Peter ED", "" ], [ "Fang", "Weili", "" ], [ "Matthews", "Jane", "" ], [ "Porter", "Stuart", "" ], [ "Luo", "Hanbin", "" ], [ "Ding", "Lieyun", "" ] ]
2211.08467
Matthias Hutsebaut-Buysse
Matthias Hutsebaut-Buysse, Kevin Mets, Tom De Schepper, Steven Latr\'e
Structured Exploration Through Instruction Enhancement for Object Navigation
Paper accepted to the BNAIC/BeNeLearn 2022 conference
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Finding an object of a specific class in an unseen environment remains an unsolved navigation problem. Hence, we propose a hierarchical learning-based method for object navigation. The top-level is capable of high-level planning, and building a memory on a floorplan-level (e.g., which room makes the most sense for the agent to visit next, where has the agent already been?). While the lower-level is tasked with efficiently navigating between rooms and looking for objects in them. Instructions can be provided to the agent using a simple synthetic language. The top-level intelligently enhances the instructions in order to make the overall task more tractable. Language grounding, mapping instructions to visual observations, is performed by utilizing an additional separate supervised trained goal assessment module. We demonstrate the effectiveness of our method on a dynamic configurable domestic environment.
[ { "version": "v1", "created": "Tue, 15 Nov 2022 19:39:22 GMT" } ]
1,668,643,200,000
[ [ "Hutsebaut-Buysse", "Matthias", "" ], [ "Mets", "Kevin", "" ], [ "De Schepper", "Tom", "" ], [ "Latré", "Steven", "" ] ]
2211.08671
Zhening Li
Zhening Li, Gabriel Poesia, Omar Costilla-Reyes, Noah Goodman, Armando Solar-Lezama
LEMMA: Bootstrapping High-Level Mathematical Reasoning with Learned Symbolic Abstractions
10 pages, 2 figures; to appear in 2nd MATH-AI Workshop at NeurIPS'22
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Humans tame the complexity of mathematical reasoning by developing hierarchies of abstractions. With proper abstractions, solutions to hard problems can be expressed concisely, thus making them more likely to be found. In this paper, we propose Learning Mathematical Abstractions (LEMMA): an algorithm that implements this idea for reinforcement learning agents in mathematical domains. LEMMA augments Expert Iteration with an abstraction step, where solutions found so far are revisited and rewritten in terms of new higher-level actions, which then become available to solve new problems. We evaluate LEMMA on two mathematical reasoning tasks--equation solving and fraction simplification--in a step-by-step fashion. In these two domains, LEMMA improves the ability of an existing agent, both solving more problems and generalizing more effectively to harder problems than those seen during training.
[ { "version": "v1", "created": "Wed, 16 Nov 2022 04:59:08 GMT" } ]
1,668,643,200,000
[ [ "Li", "Zhening", "" ], [ "Poesia", "Gabriel", "" ], [ "Costilla-Reyes", "Omar", "" ], [ "Goodman", "Noah", "" ], [ "Solar-Lezama", "Armando", "" ] ]
2211.09622
Kevin Du
Kevin Du, Ian Gemp, Yi Wu, Yingying Wu
AlphaSnake: Policy Iteration on a Nondeterministic NP-hard Markov Decision Process
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Reinforcement learning has recently been used to approach well-known NP-hard combinatorial problems in graph theory. Among these problems, Hamiltonian cycle problems are exceptionally difficult to analyze, even when restricted to individual instances of structurally complex graphs. In this paper, we use Monte Carlo Tree Search (MCTS), the search algorithm behind many state-of-the-art reinforcement learning algorithms such as AlphaZero, to create autonomous agents that learn to play the game of Snake, a game centered on properties of Hamiltonian cycles on grid graphs. The game of Snake can be formulated as a single-player discounted Markov Decision Process (MDP) where the agent must behave optimally in a stochastic environment. Determining the optimal policy for Snake, defined as the policy that maximizes the probability of winning - or win rate - with higher priority and minimizes the expected number of time steps to win with lower priority, is conjectured to be NP-hard. Performance-wise, compared to prior work in the Snake game, our algorithm is the first to achieve a win rate over $0.5$ (a uniform random policy achieves a win rate $< 2.57 \times 10^{-15}$), demonstrating the versatility of AlphaZero in approaching NP-hard environments.
[ { "version": "v1", "created": "Thu, 17 Nov 2022 16:15:26 GMT" } ]
1,668,729,600,000
[ [ "Du", "Kevin", "" ], [ "Gemp", "Ian", "" ], [ "Wu", "Yi", "" ], [ "Wu", "Yingying", "" ] ]
2211.09752
Yuanshun Yao
Yuanshun Yao, Chong Wang, Hang Li
Learning to Counterfactually Explain Recommendations
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-nd/4.0/
Recommender system practitioners are facing increasing pressure to explain recommendations. We explore how to explain recommendations using counterfactual logic, i.e. "Had you not interacted with the following items, we would not recommend it." Compared to the traditional explanation logic, counterfactual explanations are easier to understand, more technically verifiable, and more informative in terms of giving users control over recommendations. The major challenge of generating such explanations is the computational cost because it requires repeatedly retraining the models to obtain the effect on a recommendation caused by the absence of user history. We propose a learning-based framework to generate counterfactual explanations. The key idea is to train a surrogate model to learn the effect of removing a subset of user history on the recommendation. To this end, we first artificially simulate the counterfactual outcomes on the recommendation after deleting subsets of history. Then we train a surrogate model to learn the mapping between a history deletion and the corresponding change of the recommendation caused by the deletion. Finally, to generate an explanation, we find the history subset predicted by the surrogate model that is most likely to remove the recommendation. Through offline experiments and online user studies, we show our method, compared to baselines, can generate explanations that are more counterfactually valid and more satisfactory considered by users.
[ { "version": "v1", "created": "Thu, 17 Nov 2022 18:21:21 GMT" }, { "version": "v2", "created": "Wed, 8 Feb 2023 19:03:41 GMT" } ]
1,675,987,200,000
[ [ "Yao", "Yuanshun", "" ], [ "Wang", "Chong", "" ], [ "Li", "Hang", "" ] ]
2211.10011
Sumin Seo
Sumin Seo, Heeseon Cheon, Hyunho Kim, Dongseok Hyun
Structural Quality Metrics to Evaluate Knowledge Graphs
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
This work presents six structural quality metrics that can measure the quality of knowledge graphs and analyzes five cross-domain knowledge graphs on the web (Wikidata, DBpedia, YAGO, Google Knowledge Graph, Freebase) as well as 'Raftel', Naver's integrated knowledge graph. The 'Good Knowledge Graph' should define detailed classes and properties in its ontology so that knowledge in the real world can be expressed abundantly. Also, instances and RDF triples should use the classes and properties actively. Therefore, we tried to examine the internal quality of knowledge graphs numerically by focusing on the structure of the ontology, which is the schema of knowledge graphs, and the degree of use thereof. As a result of the analysis, it was possible to find the characteristics of a knowledge graph that could not be known only by scale-related indicators such as the number of classes and properties.
[ { "version": "v1", "created": "Fri, 18 Nov 2022 03:26:09 GMT" }, { "version": "v2", "created": "Fri, 9 Dec 2022 09:50:53 GMT" } ]
1,670,803,200,000
[ [ "Seo", "Sumin", "" ], [ "Cheon", "Heeseon", "" ], [ "Kim", "Hyunho", "" ], [ "Hyun", "Dongseok", "" ] ]
2211.10085
Mingyu Kang
Mingyu Kang and Duxin Chen and Ning Meng and Gang Yan and Wenwu Yu
Identifying Unique Causal Network from Nonstationary Time Series
This manuscript are submitted so that other researchers can follow. The code of this work is available at: https://github.com/KMY-SEU/HCE. Many thanks for supports!
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Identifying causality is a challenging task in many data-intensive scenarios. Many algorithms have been proposed for this critical task. However, most of them consider the learning algorithms for directed acyclic graph (DAG) of Bayesian network (BN). These BN-based models only have limited causal explainability because of the issue of Markov equivalence class. Moreover, they are dependent on the assumption of stationarity, whereas many sampling time series from complex system are nonstationary. The nonstationary time series bring dataset shift problem, which leads to the unsatisfactory performances of these algorithms. To fill these gaps, a novel causation model named Unique Causal Network (UCN) is proposed in this paper. Different from the previous BN-based models, UCN considers the influence of time delay, and proves the uniqueness of obtained network structure, which addresses the issue of Markov equivalence class. Furthermore, based on the decomposability property of UCN, a higher-order causal entropy (HCE) algorithm is designed to identify the structure of UCN in a distributed way. HCE algorithm measures the strength of causality by using nearest-neighbors entropy estimator, which works well on nonstationary time series. Finally, lots of experiments validate that HCE algorithm achieves state-of-the-art accuracy when time series are nonstationary, compared to the other baseline algorithms.
[ { "version": "v1", "created": "Fri, 18 Nov 2022 08:28:54 GMT" }, { "version": "v2", "created": "Mon, 21 Nov 2022 15:02:10 GMT" }, { "version": "v3", "created": "Wed, 30 Aug 2023 00:46:21 GMT" } ]
1,693,440,000,000
[ [ "Kang", "Mingyu", "" ], [ "Chen", "Duxin", "" ], [ "Meng", "Ning", "" ], [ "Yan", "Gang", "" ], [ "Yu", "Wenwu", "" ] ]
2211.10298
Siddhant Bhambri
Siddhant Bhambri, Amrita Bhattacharjee, Dimitri Bertsekas
Reinforcement Learning Methods for Wordle: A POMDP/Adaptive Control Approach
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
In this paper we address the solution of the popular Wordle puzzle, using new reinforcement learning methods, which apply more generally to adaptive control of dynamic systems and to classes of Partially Observable Markov Decision Process (POMDP) problems. These methods are based on approximation in value space and the rollout approach, admit a straightforward implementation, and provide improved performance over various heuristic approaches. For the Wordle puzzle, they yield on-line solution strategies that are very close to optimal at relatively modest computational cost. Our methods are viable for more complex versions of Wordle and related search problems, for which an optimal strategy would be impossible to compute. They are also applicable to a wide range of adaptive sequential decision problems that involve an unknown or frequently changing environment whose parameters are estimated on-line.
[ { "version": "v1", "created": "Tue, 15 Nov 2022 03:46:41 GMT" }, { "version": "v2", "created": "Mon, 21 Nov 2022 17:52:32 GMT" }, { "version": "v3", "created": "Tue, 22 Nov 2022 02:05:23 GMT" }, { "version": "v4", "created": "Tue, 29 Nov 2022 19:26:11 GMT" } ]
1,669,852,800,000
[ [ "Bhambri", "Siddhant", "" ], [ "Bhattacharjee", "Amrita", "" ], [ "Bertsekas", "Dimitri", "" ] ]
2211.11281
Ting Yu
Shiqiang Zhu, Ting Yu, Tao Xu, Hongyang Chen, Schahram Dustdar, Sylvain Gigan, Deniz Gunduz, Ekram Hossain, Yaochu Jin, Feng Lin, Bo Liu, Zhiguo Wan, Ji Zhang, Zhifeng Zhao, Wentao Zhu, Zuoning Chen, Tariq Durrani, Huaimin Wang, Jiangxing Wu, Tongyi Zhang, Yunhe Pan
Intelligent Computing: The Latest Advances, Challenges and Future
null
Intell. Comput. 2023;2:0006
10.34133/icomputing.0006
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Computing is a critical driving force in the development of human civilization. In recent years, we have witnessed the emergence of intelligent computing, a new computing paradigm that is reshaping traditional computing and promoting digital revolution in the era of big data, artificial intelligence and internet-of-things with new computing theories, architectures, methods, systems, and applications. Intelligent computing has greatly broadened the scope of computing, extending it from traditional computing on data to increasingly diverse computing paradigms such as perceptual intelligence, cognitive intelligence, autonomous intelligence, and human-computer fusion intelligence. Intelligence and computing have undergone paths of different evolution and development for a long time but have become increasingly intertwined in recent years: intelligent computing is not only intelligence-oriented but also intelligence-driven. Such cross-fertilization has prompted the emergence and rapid advancement of intelligent computing. Intelligent computing is still in its infancy and an abundance of innovations in the theories, systems, and applications of intelligent computing are expected to occur soon. We present the first comprehensive survey of literature on intelligent computing, covering its theory fundamentals, the technological fusion of intelligence and computing, important applications, challenges, and future perspectives. We believe that this survey is highly timely and will provide a comprehensive reference and cast valuable insights into intelligent computing for academic and industrial researchers and practitioners.
[ { "version": "v1", "created": "Mon, 21 Nov 2022 09:15:13 GMT" } ]
1,713,398,400,000
[ [ "Zhu", "Shiqiang", "" ], [ "Yu", "Ting", "" ], [ "Xu", "Tao", "" ], [ "Chen", "Hongyang", "" ], [ "Dustdar", "Schahram", "" ], [ "Gigan", "Sylvain", "" ], [ "Gunduz", "Deniz", "" ], [ "Hossain", "Ekram", "" ], [ "Jin", "Yaochu", "" ], [ "Lin", "Feng", "" ], [ "Liu", "Bo", "" ], [ "Wan", "Zhiguo", "" ], [ "Zhang", "Ji", "" ], [ "Zhao", "Zhifeng", "" ], [ "Zhu", "Wentao", "" ], [ "Chen", "Zuoning", "" ], [ "Durrani", "Tariq", "" ], [ "Wang", "Huaimin", "" ], [ "Wu", "Jiangxing", "" ], [ "Zhang", "Tongyi", "" ], [ "Pan", "Yunhe", "" ] ]
2211.11650
Zihan Ye
Zihan Ye, Hikaru Shindo, Devendra Singh Dhami, Kristian Kersting
Neural Meta-Symbolic Reasoning and Learning
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deep neural learning uses an increasing amount of computation and data to solve very specific problems. By stark contrast, human minds solve a wide range of problems using a fixed amount of computation and limited experience. One ability that seems crucial to this kind of general intelligence is meta-reasoning, i.e., our ability to reason about reasoning. To make deep learning do more from less, we propose the first neural meta-symbolic system (NEMESYS) for reasoning and learning: meta programming using differentiable forward-chaining reasoning in first-order logic. Differentiable meta programming naturally allows NEMESYS to reason and learn several tasks efficiently. This is different from performing object-level deep reasoning and learning, which refers in some way to entities external to the system. In contrast, NEMESYS enables self-introspection, lifting from object- to meta-level reasoning and vice versa. In our extensive experiments, we demonstrate that NEMESYS can solve different kinds of tasks by adapting the meta-level programs without modifying the internal reasoning system. Moreover, we show that NEMESYS can learn meta-level programs given examples. This is difficult, if not impossible, for standard differentiable logic programming
[ { "version": "v1", "created": "Mon, 21 Nov 2022 17:12:06 GMT" }, { "version": "v2", "created": "Fri, 15 Dec 2023 21:19:11 GMT" } ]
1,702,944,000,000
[ [ "Ye", "Zihan", "" ], [ "Shindo", "Hikaru", "" ], [ "Dhami", "Devendra Singh", "" ], [ "Kersting", "Kristian", "" ] ]
2211.12006
Xuan Wu
Xuan Wu, Xinhao Zhu, Yizheng Zhao, Xinyu Dai
Differentiable Fuzzy $\mathcal{ALC}$: A Neural-Symbolic Representation Language for Symbol Grounding
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neural-symbolic computing aims at integrating robust neural learning and sound symbolic reasoning into a single framework, so as to leverage the complementary strengths of both of these, seemingly unrelated (maybe even contradictory) AI paradigms. The central challenge in neural-symbolic computing is to unify the formulation of neural learning and symbolic reasoning into a single framework with common semantics, that is, to seek a joint representation between a neural model and a logical theory that can support the basic grounding learned by the neural model and also stick to the semantics of the logical theory. In this paper, we propose differentiable fuzzy $\mathcal{ALC}$ (DF-$\mathcal{ALC}$) for this role, as a neural-symbolic representation language with the desired semantics. DF-$\mathcal{ALC}$ unifies the description logic $\mathcal{ALC}$ and neural models for symbol grounding; in particular, it infuses an $\mathcal{ALC}$ knowledge base into neural models through differentiable concept and role embeddings. We define a hierarchical loss to the constraint that the grounding learned by neural models must be semantically consistent with $\mathcal{ALC}$ knowledge bases. And we find that capturing the semantics in grounding solely by maximizing satisfiability cannot revise grounding rationally. We further define a rule-based loss for DF adapting to symbol grounding problems. The experiment results show that DF-$\mathcal{ALC}$ with rule-based loss can improve the performance of image object detectors in an unsupervised learning way, even in low-resource situations.
[ { "version": "v1", "created": "Tue, 22 Nov 2022 04:54:20 GMT" }, { "version": "v2", "created": "Thu, 1 Dec 2022 05:57:44 GMT" } ]
1,669,939,200,000
[ [ "Wu", "Xuan", "" ], [ "Zhu", "Xinhao", "" ], [ "Zhao", "Yizheng", "" ], [ "Dai", "Xinyu", "" ] ]
2211.12270
Riccardo Massidda
Riccardo Massidda, Atticus Geiger, Thomas Icard, Davide Bacciu
Causal Abstraction with Soft Interventions
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Causal abstraction provides a theory describing how several causal models can represent the same system at different levels of detail. Existing theoretical proposals limit the analysis of abstract models to "hard" interventions fixing causal variables to be constant values. In this work, we extend causal abstraction to "soft" interventions, which assign possibly non-constant functions to variables without adding new causal connections. Specifically, (i) we generalize $\tau$-abstraction from Beckers and Halpern (2019) to soft interventions, (ii) we propose a further definition of soft abstraction to ensure a unique map $\omega$ between soft interventions, and (iii) we prove that our constructive definition of soft abstraction guarantees the intervention map $\omega$ has a specific and necessary explicit form.
[ { "version": "v1", "created": "Tue, 22 Nov 2022 13:42:43 GMT" } ]
1,669,161,600,000
[ [ "Massidda", "Riccardo", "" ], [ "Geiger", "Atticus", "" ], [ "Icard", "Thomas", "" ], [ "Bacciu", "Davide", "" ] ]
2211.12560
Adam Hepworth
Adam Hepworth, Aya Hussein, Darryn Reid, Hussein Abbass
Contextually Aware Intelligent Control Agents for Heterogeneous Swarms
37 pages, 3 figures, 11 tables
null
null
null
cs.AI
http://creativecommons.org/licenses/by-sa/4.0/
An emerging challenge in swarm shepherding research is to design effective and efficient artificial intelligence algorithms that maintain a low-computational ceiling while increasing the swarm's abilities to operate in diverse contexts. We propose a methodology to design a context-aware swarm-control intelligent agent. The intelligent control agent (shepherd) first uses swarm metrics to recognise the type of swarm it interacts with to then select a suitable parameterisation from its behavioural library for that particular swarm type. The design principle of our methodology is to increase the situation awareness (i.e. information contents) of the control agent without sacrificing the low-computational cost necessary for efficient swarm control. We demonstrate successful shepherding in both homogeneous and heterogeneous swarms.
[ { "version": "v1", "created": "Tue, 22 Nov 2022 20:25:59 GMT" } ]
1,669,248,000,000
[ [ "Hepworth", "Adam", "" ], [ "Hussein", "Aya", "" ], [ "Reid", "Darryn", "" ], [ "Abbass", "Hussein", "" ] ]
2211.13315
Kumar Sankar Ray
Kumar Sankar Ray
Bayesian Brain: Computation with Perception to Recognize 3D Objects
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-nd/4.0/
We mimic the cognitive ability of Human perception, based on Bayesian hypothesis, to recognize view-based 3D objects. We consider approximate Bayesian (Empirical Bayesian) for perceptual inference for recognition. We essentially handle computation with perception.
[ { "version": "v1", "created": "Wed, 23 Nov 2022 21:33:57 GMT" } ]
1,669,593,600,000
[ [ "Ray", "Kumar Sankar", "" ] ]
2211.13469
Haoran Luo
Haoran Luo, Haihong E, Yuhao Yang, Gengxian Zhou, Yikai Guo, Tianyu Yao, Zichen Tang, Xueyuan Lin, Kaiyang Wan
NQE: N-ary Query Embedding for Complex Query Answering over Hyper-Relational Knowledge Graphs
Accepted by AAAI 2023
AAAI 2023
10.1609/aaai.v37i4.25576
7903
cs.AI
http://creativecommons.org/licenses/by-nc-sa/4.0/
Complex query answering (CQA) is an essential task for multi-hop and logical reasoning on knowledge graphs (KGs). Currently, most approaches are limited to queries among binary relational facts and pay less attention to n-ary facts (n>=2) containing more than two entities, which are more prevalent in the real world. Moreover, previous CQA methods can only make predictions for a few given types of queries and cannot be flexibly extended to more complex logical queries, which significantly limits their applications. To overcome these challenges, in this work, we propose a novel N-ary Query Embedding (NQE) model for CQA over hyper-relational knowledge graphs (HKGs), which include massive n-ary facts. The NQE utilizes a dual-heterogeneous Transformer encoder and fuzzy logic theory to satisfy all n-ary FOL queries, including existential quantifiers, conjunction, disjunction, and negation. We also propose a parallel processing algorithm that can train or predict arbitrary n-ary FOL queries in a single batch, regardless of the kind of each query, with good flexibility and extensibility. In addition, we generate a new CQA dataset WD50K-NFOL, including diverse n-ary FOL queries over WD50K. Experimental results on WD50K-NFOL and other standard CQA datasets show that NQE is the state-of-the-art CQA method over HKGs with good generalization capability. Our code and dataset are publicly available.
[ { "version": "v1", "created": "Thu, 24 Nov 2022 08:26:18 GMT" }, { "version": "v2", "created": "Fri, 24 Feb 2023 17:12:38 GMT" }, { "version": "v3", "created": "Fri, 31 Mar 2023 21:54:52 GMT" } ]
1,697,500,800,000
[ [ "Luo", "Haoran", "" ], [ "E", "Haihong", "" ], [ "Yang", "Yuhao", "" ], [ "Zhou", "Gengxian", "" ], [ "Guo", "Yikai", "" ], [ "Yao", "Tianyu", "" ], [ "Tang", "Zichen", "" ], [ "Lin", "Xueyuan", "" ], [ "Wan", "Kaiyang", "" ] ]
2211.14405
Yong Gao
Congsong Zhang and Yong Gao and James Nastos
Learning Branching Heuristics from Graph Neural Networks
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Backtracking has been widely used for solving problems in artificial intelligence (AI), including constraint satisfaction problems and combinatorial optimization problems. Good branching heuristics can efficiently improve the performance of backtracking by helping prune the search space and leading the search to the most promising direction. In this paper, we first propose a new graph neural network (GNN) model designed using the probabilistic method. From the GNN model, we introduce an approach to learn a branching heuristic for combinatorial optimization problems. In particular, our GNN model learns appropriate probability distributions on vertices in given graphs from which the branching heuristic is extracted and used in a backtracking search. Our experimental results for the (minimum) dominating-clique problem show that this learned branching heuristic performs better than the minimum-remaining-values heuristic in terms of the number of branches of the whole search tree. Our approach introduces a new way of applying GNNs towards enhancing the classical backtracking algorithm used in AI.
[ { "version": "v1", "created": "Sat, 26 Nov 2022 00:01:01 GMT" } ]
1,669,680,000,000
[ [ "Zhang", "Congsong", "" ], [ "Gao", "Yong", "" ], [ "Nastos", "James", "" ] ]
2211.14409
Ryo Kuroiwa
Ryo Kuroiwa and J. Christopher Beck
Domain-Independent Dynamic Programming: Generic State Space Search for Combinatorial Optimization
This paper was accepted at the 33rd International Conference on Automated Planning and Scheduling (ICAPS) 2023
Proceedings of the International Conference on Automated Planning and Scheduling, 33(1), 2023, 236-244
10.1609/icaps.v33i1.27200
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
For combinatorial optimization problems, model-based approaches such as mixed-integer programming (MIP) and constraint programming (CP) aim to decouple modeling and solving a problem: the 'holy grail' of declarative problem solving. We propose domain-independent dynamic programming (DIDP), a new model-based paradigm based on dynamic programming (DP). While DP is not new, it has typically been implemented as a problem-specific method. We propose Dynamic Programming Description Language (DyPDL), a formalism to define DP models, and develop Cost-Algebraic A* Solver for DyPDL (CAASDy), a generic solver for DyPDL using state space search. We formalize existing problem-specific DP and state space search methods for combinatorial optimization problems as DP models in DyPDL. Using CAASDy and commercial MIP and CP solvers, we experimentally compare the DP models with existing MIP and CP models, showing that, despite its nascent nature, CAASDy outperforms MIP and CP on a number of common problem classes.
[ { "version": "v1", "created": "Sat, 26 Nov 2022 00:15:45 GMT" }, { "version": "v2", "created": "Wed, 1 Mar 2023 19:35:47 GMT" } ]
1,706,227,200,000
[ [ "Kuroiwa", "Ryo", "" ], [ "Beck", "J. Christopher", "" ] ]
2211.14422
Lei Kou
Quande Yuan, Yuzhen Pi, Lei Kou, Fangfang Zhang, Bo Ye
Quantitative Method for Security Situation of the Power Information Network Based on the Evolutionary Neural Network
Frontiers in Energy Research
null
10.3389/fenrg.2022.88535
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cybersecurity is the security cornerstone of digital transformation of the power grid and construction of new power systems. The traditional network security situation quantification method only analyzes from the perspective of network performance, ignoring the impact of various power application services on the security situation, so the quantification results cannot fully reflect the power information network risk state. This study proposes a method for quantifying security situation of the power information network based on the evolutionary neural network. First, the security posture system architecture is designed by analyzing the business characteristics of power information network applications. Second, combining the importance of power application business, the spatial element index system of coupled interconnection is established from three dimensions of network reliability, threat, and vulnerability. Then, the BP neural network optimized by the genetic evolutionary algorithm is incorporated into the element index calculation process, and the quantitative model of security posture of the power information network based on the evolutionary neural network is constructed. Finally, a simulation experiment environment is built according to a power sector network topology, and the effectiveness and robustness of the method proposed in the study are verified.
[ { "version": "v1", "created": "Sat, 26 Nov 2022 01:05:35 GMT" } ]
1,669,680,000,000
[ [ "Yuan", "Quande", "" ], [ "Pi", "Yuzhen", "" ], [ "Kou", "Lei", "" ], [ "Zhang", "Fangfang", "" ], [ "Ye", "Bo", "" ] ]
2211.14492
Yuan Sun Dr
Yuan Sun, Su Nguyen, Dhananjay Thiruvady, Xiaodong Li, Andreas T. Ernst and Uwe Aickelin
Enhancing Constraint Programming via Supervised Learning for Job Shop Scheduling
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Constraint programming (CP) is a powerful technique for solving constraint satisfaction and optimization problems. In CP solvers, the variable ordering strategy used to select which variable to explore first in the solving process has a significant impact on solver effectiveness. To address this issue, we propose a novel variable ordering strategy based on supervised learning, which we evaluate in the context of job shop scheduling problems. Our learning-based methods predict the optimal solution of a problem instance and use the predicted solution to order variables for CP solvers. \added[]{Unlike traditional variable ordering methods, our methods can learn from the characteristics of each problem instance and customize the variable ordering strategy accordingly, leading to improved solver performance.} Our experiments demonstrate that training machine learning models is highly efficient and can achieve high accuracy. Furthermore, our learned variable ordering methods perform competitively when compared to four existing methods. Finally, we demonstrate that hybridising the machine learning-based variable ordering methods with traditional domain-based methods is beneficial.
[ { "version": "v1", "created": "Sat, 26 Nov 2022 06:30:28 GMT" }, { "version": "v2", "created": "Wed, 12 Apr 2023 07:20:31 GMT" } ]
1,681,344,000,000
[ [ "Sun", "Yuan", "" ], [ "Nguyen", "Su", "" ], [ "Thiruvady", "Dhananjay", "" ], [ "Li", "Xiaodong", "" ], [ "Ernst", "Andreas T.", "" ], [ "Aickelin", "Uwe", "" ] ]
2211.14541
Vladimir Poliakov
Vladimir Poliakov and Kenan Niu and Emmanuel Vander Poorten and Dzmitry Tsetserukou
RL-Based Guidance in Outpatient Hysteroscopy Training: A Feasibility Study
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
This work presents an RL-based agent for outpatient hysteroscopy training. Hysteroscopy is a gynecological procedure for examination of the uterine cavity. Recent advancements enabled performing this type of intervention in the outpatient setup without anaesthesia. While being beneficial to the patient, this approach introduces new challenges for clinicians, who should take additional measures to maintain the level of patient comfort and prevent tissue damage. Our prior work has presented a platform for hysteroscopic training with the focus on the passage of the cervical canal. With this work, we aim to extend the functionality of the platform by designing a subsystem that autonomously performs the task of the passage of the cervical canal. This feature can later be used as a virtual instructor to provide educational cues for trainees and assess their performance. The developed algorithm is based on the soft actor critic approach to smooth the learning curve of the agent and ensure uniform exploration of the workspace. The designed algorithm was tested against the performance of five clinicians. Overall, the algorithm demonstrated high efficiency and reliability, succeeding in 98% of trials and outperforming the expert group in three out of four measured metrics.
[ { "version": "v1", "created": "Sat, 26 Nov 2022 11:16:17 GMT" } ]
1,669,680,000,000
[ [ "Poliakov", "Vladimir", "" ], [ "Niu", "Kenan", "" ], [ "Poorten", "Emmanuel Vander", "" ], [ "Tsetserukou", "Dzmitry", "" ] ]
2211.14673
Charles Lovering J
Charles Lovering, Jessica Zosa Forde, George Konidaris, Ellie Pavlick, Michael L. Littman
Evaluation Beyond Task Performance: Analyzing Concepts in AlphaZero in Hex
10 pages, Neural Information Processing Systems 2022
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
AlphaZero, an approach to reinforcement learning that couples neural networks and Monte Carlo tree search (MCTS), has produced state-of-the-art strategies for traditional board games like chess, Go, shogi, and Hex. While researchers and game commentators have suggested that AlphaZero uses concepts that humans consider important, it is unclear how these concepts are captured in the network. We investigate AlphaZero's internal representations in the game of Hex using two evaluation techniques from natural language processing (NLP): model probing and behavioral tests. In doing so, we introduce new evaluation tools to the RL community and illustrate how evaluations other than task performance can be used to provide a more complete picture of a model's strengths and weaknesses. Our analyses in the game of Hex reveal interesting patterns and generate some testable hypotheses about how such models learn in general. For example, we find that MCTS discovers concepts before the neural network learns to encode them. We also find that concepts related to short-term end-game planning are best encoded in the final layers of the model, whereas concepts related to long-term planning are encoded in the middle layers of the model.
[ { "version": "v1", "created": "Sat, 26 Nov 2022 21:59:11 GMT" } ]
1,669,680,000,000
[ [ "Lovering", "Charles", "" ], [ "Forde", "Jessica Zosa", "" ], [ "Konidaris", "George", "" ], [ "Pavlick", "Ellie", "" ], [ "Littman", "Michael L.", "" ] ]
2211.14987
Jia-Qi Lin
Jia-Qi Lin, Man-Sheng Chen, Xi-Ran Zhu, Chang-Dong Wang, Haizhang Zhang
Dual Information Enhanced Multi-view Attributed Graph Clustering
11 pages, 4 figures
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Multi-view attributed graph clustering is an important approach to partition multi-view data based on the attribute feature and adjacent matrices from different views. Some attempts have been made in utilizing Graph Neural Network (GNN), which have achieved promising clustering performance. Despite this, few of them pay attention to the inherent specific information embedded in multiple views. Meanwhile, they are incapable of recovering the latent high-level representation from the low-level ones, greatly limiting the downstream clustering performance. To fill these gaps, a novel Dual Information enhanced multi-view Attributed Graph Clustering (DIAGC) method is proposed in this paper. Specifically, the proposed method introduces the Specific Information Reconstruction (SIR) module to disentangle the explorations of the consensus and specific information from multiple views, which enables GCN to capture the more essential low-level representations. Besides, the Mutual Information Maximization (MIM) module maximizes the agreement between the latent high-level representation and low-level ones, and enables the high-level representation to satisfy the desired clustering structure with the help of the Self-supervised Clustering (SC) module. Extensive experiments on several real-world benchmarks demonstrate the effectiveness of the proposed DIAGC method compared with the state-of-the-art baselines.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 01:18:04 GMT" } ]
1,669,680,000,000
[ [ "Lin", "Jia-Qi", "" ], [ "Chen", "Man-Sheng", "" ], [ "Zhu", "Xi-Ran", "" ], [ "Wang", "Chang-Dong", "" ], [ "Zhang", "Haizhang", "" ] ]
2211.15234
Ruitian Wu
Jingwei Li, Ruitian Wu, Tzu-liang Huang, Zian Pan, Ming-chun Huang
Shoupa: An AI System for Early Diagnosis of Parkinson's Disease
2 pages, 1 figure, accepted by IEEE/ACM CHASE 2022 (Poster Presentation)
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Parkinson's Disease (PD) is a progressive nervous system disorder that has affected more than 5.8 million people, especially the elderly. Due to the complexity of its symptoms and its similarity to other neurological disorders, early detection requires neurologists or PD specialists to be involved, which is not accessible to most old people. Therefore, we integrate smart mobile devices with AI technologies. In this paper, we introduce the framework of our developed PD early detection system which combines different tasks evaluating both motor and non-motor symptoms. With the developed model, we help users detect PD punctually in non-clinical settings and figure out their most severe symptoms. The results are expected to be further used for PD rehabilitation guidance and detection of other neurological disorders.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 11:32:17 GMT" } ]
1,669,680,000,000
[ [ "Li", "Jingwei", "" ], [ "Wu", "Ruitian", "" ], [ "Huang", "Tzu-liang", "" ], [ "Pan", "Zian", "" ], [ "Huang", "Ming-chun", "" ] ]
2211.15271
Eva Cetinic
Eva Cetinic
The Myth of Culturally Agnostic AI Models
Accepted for "Cultures in AI/AI in Culture" NeurIPS 2022 Workshop
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
The paper discusses the potential of large vision-language models as objects of interest for empirical cultural studies. Focusing on the comparative analysis of outputs from two popular text-to-image synthesis models, DALL-E 2 and Stable Diffusion, the paper tries to tackle the pros and cons of striving towards culturally agnostic vs. culturally specific AI models. The paper discusses several examples of memorization and bias in generated outputs which showcase the trade-off between risk mitigation and cultural specificity, as well as the overall impossibility of developing culturally agnostic models.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 12:54:34 GMT" }, { "version": "v2", "created": "Tue, 29 Nov 2022 11:22:38 GMT" } ]
1,669,766,400,000
[ [ "Cetinic", "Eva", "" ] ]
2211.15324
Yinan Liu
Yinan Liu and Hu Chen and Wei Shen and Jiaoyan Chen
Low-resource Personal Attribute Prediction from Conversation
Accepted by AAAI'23
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Personal knowledge bases (PKBs) are crucial for a broad range of applications such as personalized recommendation and Web-based chatbots. A critical challenge to build PKBs is extracting personal attribute knowledge from users' conversation data. Given some users of a conversational system, a personal attribute and these users' utterances, our goal is to predict the ranking of the given personal attribute values for each user. Previous studies often rely on a relative number of resources such as labeled utterances and external data, yet the attribute knowledge embedded in unlabeled utterances is underutilized and their performance of predicting some difficult personal attributes is still unsatisfactory. In addition, it is found that some text classification methods could be employed to resolve this task directly. However, they also perform not well over those difficult personal attributes. In this paper, we propose a novel framework PEARL to predict personal attributes from conversations by leveraging the abundant personal attribute knowledge from utterances under a low-resource setting in which no labeled utterances or external data are utilized. PEARL combines the biterm semantic information with the word co-occurrence information seamlessly via employing the updated prior attribute knowledge to refine the biterm topic model's Gibbs sampling process in an iterative manner. The extensive experimental results show that PEARL outperforms all the baseline methods not only on the task of personal attribute prediction from conversations over two data sets, but also on the more general weakly supervised text classification task over one data set.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 14:04:51 GMT" } ]
1,669,680,000,000
[ [ "Liu", "Yinan", "" ], [ "Chen", "Hu", "" ], [ "Shen", "Wei", "" ], [ "Chen", "Jiaoyan", "" ] ]
2211.15349
Michal Ajdar\'ow
Michal Ajdar\'ow, \v{S}imon Brlej, Petr Novotn\'y
Shielding in Resource-Constrained Goal POMDPs
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider partially observable Markov decision processes (POMDPs) modeling an agent that needs a supply of a certain resource (e.g., electricity stored in batteries) to operate correctly. The resource is consumed by agent's actions and can be replenished only in certain states. The agent aims to minimize the expected cost of reaching some goal while preventing resource exhaustion, a problem we call \emph{resource-constrained goal optimization} (RSGO). We take a two-step approach to the RSGO problem. First, using formal methods techniques, we design an algorithm computing a \emph{shield} for a given scenario: a procedure that observes the agent and prevents it from using actions that might eventually lead to resource exhaustion. Second, we augment the POMCP heuristic search algorithm for POMDP planning with our shields to obtain an algorithm solving the RSGO problem. We implement our algorithm and present experiments showing its applicability to benchmarks from the literature.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 14:30:05 GMT" } ]
1,669,680,000,000
[ [ "Ajdarów", "Michal", "" ], [ "Brlej", "Šimon", "" ], [ "Novotný", "Petr", "" ] ]
2211.15384
Yangtianze Tao
Yangtianze Tao and John Doe
Double Deep Q-Learning in Opponent Modeling
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Multi-agent systems in which secondary agents with conflicting agendas also alter their methods need opponent modeling. In this study, we simulate the main agent's and secondary agents' tactics using Double Deep Q-Networks (DDQN) with a prioritized experience replay mechanism. Then, under the opponent modeling setup, a Mixture-of-Experts architecture is used to identify various opponent strategy patterns. Finally, we analyze our models in two environments with several agents. The findings indicate that the Mixture-of-Experts model, which is based on opponent modeling, performs better than DDQN.
[ { "version": "v1", "created": "Thu, 24 Nov 2022 06:07:47 GMT" } ]
1,669,680,000,000
[ [ "Tao", "Yangtianze", "" ], [ "Doe", "John", "" ] ]
2211.15408
Michael Gr. Voskoglou Prof. Dr.
Michael Gr. Voskoglou
Fuzziness, Indeterminacy and Soft Sets: Frontiers and Perspectives
15 pages, 2 figures, 3 Tables, 30n references
Mathematics, 10, 3909, 2022
10.3390/math10203909
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
The present paper comes across the main steps that laid from Zadeh's fuzziness ana Atanassov's intuitionistic fuzzy sets to Smarandache's indeterminacy and to Molodstov's soft sets. Two hybrid methods for assessment and decision making respectively under fuzzy conditions are also presented through suitable examples that use soft sets and real intervals as tools. The decision making method improves an earlier method of Maji et al. Further, it is described how the concept of topological space, the most general category of mathematical spaces, can be extended to fuzzy structures and how to generalize the fundamental mathematical concepts of limit, continuity compactness and Hausdorff space within such kind of structures. In particular, fuzzy and soft topological spaces are defined and examples are given to illustrate these generalizations.
[ { "version": "v1", "created": "Thu, 10 Nov 2022 07:09:07 GMT" } ]
1,669,680,000,000
[ [ "Voskoglou", "Michael Gr.", "" ] ]
2211.15552
Kaira Samuel
Kaira Samuel, Matthew LaRosa, Kyle McAlpin, Morgan Schaefer, Brandon Swenson, Devin Wasilefsky, Yan Wu, Dan Zhao, Jeremy Kepner
AI Enabled Maneuver Identification via the Maneuver Identification Challenge
10 pages, 7 figures, 4 tables, accepted to and presented at I/ITSEC
null
null
null
cs.AI
http://creativecommons.org/publicdomain/zero/1.0/
Artificial intelligence (AI) has enormous potential to improve Air Force pilot training by providing actionable feedback to pilot trainees on the quality of their maneuvers and enabling instructor-less flying familiarization for early-stage trainees in low-cost simulators. Historically, AI challenges consisting of data, problem descriptions, and example code have been critical to fueling AI breakthroughs. The Department of the Air Force-Massachusetts Institute of Technology AI Accelerator (DAF-MIT AI Accelerator) developed such an AI challenge using real-world Air Force flight simulator data. The Maneuver ID challenge assembled thousands of virtual reality simulator flight recordings collected by actual Air Force student pilots at Pilot Training Next (PTN). This dataset has been publicly released at Maneuver-ID.mit.edu and represents the first of its kind public release of USAF flight training data. Using this dataset, we have applied a variety of AI methods to separate "good" vs "bad" simulator data and categorize and characterize maneuvers. These data, algorithms, and software are being released as baselines of model performance for others to build upon to enable the AI ecosystem for flight simulator training.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 16:55:32 GMT" } ]
1,669,680,000,000
[ [ "Samuel", "Kaira", "" ], [ "LaRosa", "Matthew", "" ], [ "McAlpin", "Kyle", "" ], [ "Schaefer", "Morgan", "" ], [ "Swenson", "Brandon", "" ], [ "Wasilefsky", "Devin", "" ], [ "Wu", "Yan", "" ], [ "Zhao", "Dan", "" ], [ "Kepner", "Jeremy", "" ] ]
2211.15566
Jae Hee Lee
Jae Hee Lee, Michael Sioutis, Kyra Ahrens, Marjan Alirezaie, Matthias Kerzel, Stefan Wermter
Neuro-Symbolic Spatio-Temporal Reasoning
Contribution to the book "A Compendium of Neuro-Symbolic Artificial Intelligence", which is to appear in the first half of 2023
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Knowledge about space and time is necessary to solve problems in the physical world: An AI agent situated in the physical world and interacting with objects often needs to reason about positions of and relations between objects; and as soon as the agent plans its actions to solve a task, it needs to consider the temporal aspect (e.g., what actions to perform over time). Spatio-temporal knowledge, however, is required beyond interacting with the physical world, and is also often transferred to the abstract world of concepts through analogies and metaphors (e.g., "a threat that is hanging over our heads"). As spatial and temporal reasoning is ubiquitous, different attempts have been made to integrate this into AI systems. In the area of knowledge representation, spatial and temporal reasoning has been largely limited to modeling objects and relations and developing reasoning methods to verify statements about objects and relations. On the other hand, neural network researchers have tried to teach models to learn spatial relations from data with limited reasoning capabilities. Bridging the gap between these two approaches in a mutually beneficial way could allow us to tackle many complex real-world problems, such as natural language processing, visual question answering, and semantic image segmentation. In this chapter, we view this integration problem from the perspective of Neuro-Symbolic AI. Specifically, we propose a synergy between logical reasoning and machine learning that will be grounded on spatial and temporal knowledge. Describing some successful applications, remaining challenges, and evaluation datasets pertaining to this direction is the main topic of this contribution.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 17:21:41 GMT" }, { "version": "v2", "created": "Fri, 13 Jan 2023 16:53:14 GMT" } ]
1,673,827,200,000
[ [ "Lee", "Jae Hee", "" ], [ "Sioutis", "Michael", "" ], [ "Ahrens", "Kyra", "" ], [ "Alirezaie", "Marjan", "" ], [ "Kerzel", "Matthias", "" ], [ "Wermter", "Stefan", "" ] ]
2211.15782
Minal Suresh Patil
Minal Suresh Patil
Towards Preserving Semantic Structure in Argumentative Multi-Agent via Abstract Interpretation
5 pages, 2 figures, The Online Handbook of Argumentation for AI (OHAAI) 2022, Vol. 3
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Over the recent twenty years, argumentation has received considerable attention in the fields of knowledge representation, reasoning, and multi-agent systems. However, argumentation in dynamic multi-agent systems encounters the problem of significant arguments generated by agents, which comes at the expense of representational complexity and computational cost. In this work, we aim to investigate the notion of abstraction from the model-checking perspective, where several arguments are trying to defend the same position from various points of view, thereby reducing the size of the argumentation framework whilst preserving the semantic flow structure in the system.
[ { "version": "v1", "created": "Mon, 28 Nov 2022 21:32:52 GMT" } ]
1,669,766,400,000
[ [ "Patil", "Minal Suresh", "" ] ]
2211.15864
Gabriel Poesia
Gabriel Poesia and Noah D. Goodman
Peano: Learning Formal Mathematical Reasoning
null
null
10.1098/rsta.2022.0044
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
General mathematical reasoning is computationally undecidable, but humans routinely solve new problems. Moreover, discoveries developed over centuries are taught to subsequent generations quickly. What structure enables this, and how might that inform automated mathematical reasoning? We posit that central to both puzzles is the structure of procedural abstractions underlying mathematics. We explore this idea in a case study on 5 sections of beginning algebra on the Khan Academy platform. To define a computational foundation, we introduce Peano, a theorem-proving environment where the set of valid actions at any point is finite. We use Peano to formalize introductory algebra problems and axioms, obtaining well-defined search problems. We observe existing reinforcement learning methods for symbolic reasoning to be insufficient to solve harder problems. Adding the ability to induce reusable abstractions ("tactics") from its own solutions allows an agent to make steady progress, solving all problems. Furthermore, these abstractions induce an order to the problems, seen at random during training. The recovered order has significant agreement with the expert-designed Khan Academy curriculum, and second-generation agents trained on the recovered curriculum learn significantly faster. These results illustrate the synergistic role of abstractions and curricula in the cultural transmission of mathematics.
[ { "version": "v1", "created": "Tue, 29 Nov 2022 01:42:26 GMT" } ]
1,687,305,600,000
[ [ "Poesia", "Gabriel", "" ], [ "Goodman", "Noah D.", "" ] ]
2211.15941
Minrui Xu
Minrui Xu, Xiaoxu Ren, Dusit Niyato, Jiawen Kang, Chao Qiu, Zehui Xiong, Xiaofei Wang, and Victor C. M. Leung
When Quantum Information Technologies Meet Blockchain in Web 3.0
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
With the drive to create a decentralized digital economy, Web 3.0 has become a cornerstone of digital transformation, developed on the basis of computing-force networking, distributed data storage, and blockchain. With the rapid realization of quantum devices, Web 3.0 is being developed in parallel with the deployment of quantum cloud computing and quantum Internet. In this regard, quantum computing first disrupts the original cryptographic systems that protect data security while reshaping modern cryptography with the advantages of quantum computing and communication. Therefore, in this paper, we introduce a quantum blockchain-driven Web 3.0 framework that provides information-theoretic security for decentralized data transferring and payment transactions. First, we present the framework of quantum blockchain-driven Web 3.0 with future-proof security during the transmission of data and transaction information. Next, we discuss the potential applications and challenges of implementing quantum blockchain in Web 3.0. Finally, we describe a use case for quantum non-fungible tokens (NFTs) and propose a quantum deep learning-based optimal auction for NFT trading to maximize the achievable revenue for sufficient liquidity in Web 3.0. In this way, the proposed framework can achieve proven security and sustainability for the next-generation decentralized digital society.
[ { "version": "v1", "created": "Tue, 29 Nov 2022 05:38:42 GMT" } ]
1,669,766,400,000
[ [ "Xu", "Minrui", "" ], [ "Ren", "Xiaoxu", "" ], [ "Niyato", "Dusit", "" ], [ "Kang", "Jiawen", "" ], [ "Qiu", "Chao", "" ], [ "Xiong", "Zehui", "" ], [ "Wang", "Xiaofei", "" ], [ "Leung", "Victor C. M.", "" ] ]
2211.16011
Jiongzhi Zheng
Jiongzhi Zheng and Kun He and Jianrong Zhou and Yan Jin and Chu-Min Li and Felip Many\`a
Incorporating Multi-armed Bandit with Local Search for MaxSAT
arXiv admin note: substantial text overlap with arXiv:2201.05544
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Partial MaxSAT (PMS) and Weighted PMS (WPMS) are two practical generalizations of the MaxSAT problem. In this paper, we propose a local search algorithm for these problems, called BandHS, which applies two multi-armed bandits to guide the search directions when escaping local optima. One bandit is combined with all the soft clauses to help the algorithm select to satisfy appropriate soft clauses, and the other bandit with all the literals in hard clauses to help the algorithm select appropriate literals to satisfy the hard clauses. These two bandits can improve the algorithm's search ability in both feasible and infeasible solution spaces. We further propose an initialization method for (W)PMS that prioritizes both unit and binary clauses when producing the initial solutions. Extensive experiments demonstrate the excellent performance and generalization capability of our proposed methods, that greatly boost the state-of-the-art local search algorithm, SATLike3.0, and the state-of-the-art SAT-based incomplete solver, NuWLS-c.
[ { "version": "v1", "created": "Tue, 29 Nov 2022 08:19:26 GMT" } ]
1,669,766,400,000
[ [ "Zheng", "Jiongzhi", "" ], [ "He", "Kun", "" ], [ "Zhou", "Jianrong", "" ], [ "Jin", "Yan", "" ], [ "Li", "Chu-Min", "" ], [ "Manyà", "Felip", "" ] ]
2211.16118
Nir Oren
Nir Oren and Bruno Yun
Inferring Attack Relations for Gradual Semantics
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
A gradual semantics takes a weighted argumentation framework as input and outputs a final acceptability degree for each argument, with different semantics performing the computation in different manners. In this work, we consider the problem of attack inference. That is, given a gradual semantics, a set of arguments with associated initial weights, and the final desirable acceptability degrees associated with each argument, we seek to determine whether there is a set of attacks on those arguments such that we can obtain these acceptability degrees. The main contribution of our work is to demonstrate that the associated decision problem, i.e., whether a set of attacks can exist which allows the final acceptability degrees to occur for given initial weights, is NP-complete for the weighted h-categoriser and cardinality-based semantics, and is polynomial for the weighted max-based semantics, even for the complete version of the problem (where all initial weights and final acceptability degrees are known). We then briefly discuss how this decision problem can be modified to find the attacks themselves and conclude by examining the partial problem where not all initial weights or final acceptability degrees may be known.
[ { "version": "v1", "created": "Tue, 29 Nov 2022 11:45:27 GMT" }, { "version": "v2", "created": "Wed, 8 Feb 2023 08:47:46 GMT" } ]
1,675,900,800,000
[ [ "Oren", "Nir", "" ], [ "Yun", "Bruno", "" ] ]
2211.16242
Zhou Wen
Wen Zhou
Based on particle swarm optimization support vector machine model of the electric car sales strategy research
Some experiments need to be done better, and some theories need to be improved,thank you
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
From the perspective of constructing the classification model, this paper uses the weight coefficient (influencing factors) in the model to analyze the sales impact on different brands of electric vehicles, and optimizes the existing sales strategy.
[ { "version": "v1", "created": "Tue, 29 Nov 2022 14:26:11 GMT" }, { "version": "v2", "created": "Sat, 3 Dec 2022 09:24:32 GMT" } ]
1,670,284,800,000
[ [ "Zhou", "Wen", "" ] ]
2211.17199
Yohai Trabelsi
Yohai Trabelsi, Abhijin Adiga, Sarit Kraus, S.S. Ravi, Daniel J. Rosenkrantz
Resource Sharing Through Multi-Round Matchings
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Applications such as employees sharing office spaces over a workweek can be modeled as problems where agents are matched to resources over multiple rounds. Agents' requirements limit the set of compatible resources and the rounds in which they want to be matched. Viewing such an application as a multi-round matching problem on a bipartite compatibility graph between agents and resources, we show that a solution (i.e., a set of matchings, with one matching per round) can be found efficiently if one exists. To cope with situations where a solution does not exist, we consider two extensions. In the first extension, a benefit function is defined for each agent and the objective is to find a multi-round matching to maximize the total benefit. For a general class of benefit functions satisfying certain properties (including diminishing returns), we show that this multi-round matching problem is efficiently solvable. This class includes utilitarian and Rawlsian welfare functions. For another benefit function, we show that the maximization problem is NP-hard. In the second extension, the objective is to generate advice to each agent (i.e., a subset of requirements to be relaxed) subject to a budget constraint so that the agent can be matched. We show that this budget-constrained advice generation problem is NP-hard. For this problem, we develop an integer linear programming formulation as well as a heuristic based on local search. We experimentally evaluate our algorithms on synthetic networks and apply them to two real-world situations: shared office spaces and matching courses to classrooms.
[ { "version": "v1", "created": "Wed, 30 Nov 2022 17:46:43 GMT" } ]
1,669,852,800,000
[ [ "Trabelsi", "Yohai", "" ], [ "Adiga", "Abhijin", "" ], [ "Kraus", "Sarit", "" ], [ "Ravi", "S. S.", "" ], [ "Rosenkrantz", "Daniel J.", "" ] ]
2211.17262
Jesse Heyninck
Jesse Heyninck and Ofer Arieli and Bart Bogaerts
Non-Deterministic Approximation Fixpoint Theory and Its Application in Disjunctive Logic Programming
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Approximation fixpoint theory (AFT) is an abstract and general algebraic framework for studying the semantics of nonmonotonic logics. It provides a unifying study of the semantics of different formalisms for nonmonotonic reasoning, such as logic programming, default logic and autoepistemic logic. In this paper, we extend AFT to dealing with non-deterministic constructs that allow to handle indefinite information, represented e.g. by disjunctive formulas. This is done by generalizing the main constructions and corresponding results of AFT to non-deterministic operators, whose ranges are sets of elements rather than single elements. The applicability and usefulness of this generalization is illustrated in the context of disjunctive logic programming.
[ { "version": "v1", "created": "Wed, 30 Nov 2022 18:58:32 GMT" }, { "version": "v2", "created": "Thu, 1 Dec 2022 08:58:45 GMT" } ]
1,669,939,200,000
[ [ "Heyninck", "Jesse", "" ], [ "Arieli", "Ofer", "" ], [ "Bogaerts", "Bart", "" ] ]
2212.00061
Christeen T Jose
Christeen T. Jose
Auxiliary Learning as a step towards Artificial General Intelligence
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Auxiliary Learning is a machine learning approach in which the model acknowledges the existence of objects that do not come under any of its learned categories.The name Auxiliary learning was chosen due to the introduction of an auxiliary class. The paper focuses on increasing the generality of existing narrow purpose neural networks and also highlights the need to handle unknown objects. The Cat & Dog binary classifier is taken as an example throughout the paper.
[ { "version": "v1", "created": "Wed, 30 Nov 2022 19:04:50 GMT" } ]
1,669,939,200,000
[ [ "Jose", "Christeen T.", "" ] ]
2212.00258
Manjie Xu
Yu-Zhe Shi, Manjie Xu, Wenjuan Han, Yixin Zhu
To think inside the box, or to think out of the box? Scientific discovery via the reciprocation of insights and concepts
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
If scientific discovery is one of the main driving forces of human progress, insight is the fuel for the engine, which has long attracted behavior-level research to understand and model its underlying cognitive process. However, current tasks that abstract scientific discovery mostly focus on the emergence of insight, ignoring the special role played by domain knowledge. In this concept paper, we view scientific discovery as an interplay between $thinking \ out \ of \ the \ box$ that actively seeks insightful solutions and $thinking \ inside \ the \ box$ that generalizes on conceptual domain knowledge to keep correct. Accordingly, we propose Mindle, a semantic searching game that triggers scientific-discovery-like thinking spontaneously, as infrastructure for exploring scientific discovery on a large scale. On this basis, the meta-strategies for insights and the usage of concepts can be investigated reciprocally. In the pilot studies, several interesting observations inspire elaborated hypotheses on meta-strategies, context, and individual diversity for further investigations.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 03:52:12 GMT" }, { "version": "v2", "created": "Sun, 4 Dec 2022 09:04:30 GMT" } ]
1,670,284,800,000
[ [ "Shi", "Yu-Zhe", "" ], [ "Xu", "Manjie", "" ], [ "Han", "Wenjuan", "" ], [ "Zhu", "Yixin", "" ] ]
2212.00331
Chengbo Qiu
Chengbo Qiu, Kai Yang, Ji Wang, and Shenjie Zhao
AI Empowered Net-RCA for 6G
1 pages, wrong page footer
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
6G is envisioned to offer higher data rate, improved reliability, ubiquitous AI services, and support massive scale of connected devices. As a consequence, 6G will be much more complex than its predecessors. The growth of the system scale and complexity as well as the coexistence with the legacy networks and the diversified service requirements will inevitably incur huge maintenance cost and efforts for future 6G networks. Network Root Cause Analysis (Net-RCA) plays a critical role in identifying root causes of network faults. In this article, we first give an introduction about the envisioned 6G networks. Next, we discuss the challenges and potential solutions of 6G network operation and management, and comprehensively survey existing RCA methods. Then we propose an artificial intelligence (AI)-empowered Net-RCA framework for 6G. Performance comparisons on both synthetic and real-world network data are carried out to demonstrate that the proposed method outperforms the existing method considerably.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 07:38:32 GMT" }, { "version": "v2", "created": "Mon, 5 Dec 2022 00:19:15 GMT" } ]
1,670,284,800,000
[ [ "Qiu", "Chengbo", "" ], [ "Yang", "Kai", "" ], [ "Wang", "Ji", "" ], [ "Zhao", "Shenjie", "" ] ]
2212.00342
Balaji Ganesan
Sukriti Jaitly, Deepa Mariam George, Balaji Ganesan, Muhammad Ameen, Srinivas Pusapati
xEM: Explainable Entity Matching in Customer 360
4 pages, 5 figures. CODS-COMAD 2023 Demo
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Entity matching in Customer 360 is the task of determining if multiple records represent the same real world entity. Entities are typically people, organizations, locations, and events represented as attributed nodes in a graph, though they can also be represented as records in relational data. While probabilistic matching engines and artificial neural network models exist for this task, explaining entity matching has received less attention. In this demo, we present our Explainable Entity Matching (xEM) system and discuss the different AI/ML considerations that went into its implementation.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 08:01:01 GMT" } ]
1,669,939,200,000
[ [ "Jaitly", "Sukriti", "" ], [ "George", "Deepa Mariam", "" ], [ "Ganesan", "Balaji", "" ], [ "Ameen", "Muhammad", "" ], [ "Pusapati", "Srinivas", "" ] ]
2212.00368
Konstantin Nikolaev
O. A. Nevzorova, K. S. Nikolaev
Ontomathedu Ontology Enrichment Method
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Nowadays, distance learning technologies have become very popular. The recent pandemic has had a particularly strong impact on the development of distance education technologies. Kazan Federal University has a distance learning system based on LMS Moodle. This article describes the structure of the OntoMathEdu ecosystem aimed at improving the process of teaching school mathematics courses, and also provides a method for improving the OntoMathEdu ontology structure based on identifying new connections between contextually related concepts.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 08:57:18 GMT" } ]
1,669,939,200,000
[ [ "Nevzorova", "O. A.", "" ], [ "Nikolaev", "K. S.", "" ] ]
2212.00373
Rongzhen Ye
Rongzhen Ye, Tianqu Zhuang, Hai Wan, Jianfeng Du, Weilin Luo, Pingjia Liang
A Noise-tolerant Differentiable Learning Approach for Single Occurrence Regular Expression with Interleaving
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
We study the problem of learning a single occurrence regular expression with interleaving (SOIRE) from a set of text strings possibly with noise. SOIRE fully supports interleaving and covers a large portion of regular expressions used in practice. Learning SOIREs is challenging because it requires heavy computation and text strings usually contain noise in practice. Most of the previous studies only learn restricted SOIREs and are not robust on noisy data. To tackle these issues, we propose a noise-tolerant differentiable learning approach SOIREDL for SOIRE. We design a neural network to simulate SOIRE matching and theoretically prove that certain assignments of the set of parameters learnt by the neural network, called faithful encodings, are one-to-one corresponding to SOIREs for a bounded size. Based on this correspondence, we interpret the target SOIRE from an assignment of the set of parameters of the neural network by exploring the nearest faithful encodings. Experimental results show that SOIREDL outperforms the state-of-the-art approaches, especially on noisy data.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 09:05:43 GMT" }, { "version": "v2", "created": "Fri, 2 Dec 2022 10:34:23 GMT" }, { "version": "v3", "created": "Wed, 11 Jan 2023 07:57:17 GMT" } ]
1,673,481,600,000
[ [ "Ye", "Rongzhen", "" ], [ "Zhuang", "Tianqu", "" ], [ "Wan", "Hai", "" ], [ "Du", "Jianfeng", "" ], [ "Luo", "Weilin", "" ], [ "Liang", "Pingjia", "" ] ]
2212.00443
Kanghoon Yoon
Kanghoon Yoon, Kibum Kim, Jinyoung Moon, Chanyoung Park
Unbiased Heterogeneous Scene Graph Generation with Relation-aware Message Passing Neural Network
9 pages; AAAI 2023
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent scene graph generation (SGG) frameworks have focused on learning complex relationships among multiple objects in an image. Thanks to the nature of the message passing neural network (MPNN) that models high-order interactions between objects and their neighboring objects, they are dominant representation learning modules for SGG. However, existing MPNN-based frameworks assume the scene graph as a homogeneous graph, which restricts the context-awareness of visual relations between objects. That is, they overlook the fact that the relations tend to be highly dependent on the objects with which the relations are associated. In this paper, we propose an unbiased heterogeneous scene graph generation (HetSGG) framework that captures relation-aware context using message passing neural networks. We devise a novel message passing layer, called relation-aware message passing neural network (RMP), that aggregates the contextual information of an image considering the predicate type between objects. Our extensive evaluations demonstrate that HetSGG outperforms state-of-the-art methods, especially outperforming on tail predicate classes.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 11:25:36 GMT" }, { "version": "v2", "created": "Tue, 28 Feb 2023 09:48:09 GMT" }, { "version": "v3", "created": "Tue, 13 Jun 2023 11:16:50 GMT" }, { "version": "v4", "created": "Thu, 6 Jul 2023 06:18:01 GMT" } ]
1,688,688,000,000
[ [ "Yoon", "Kanghoon", "" ], [ "Kim", "Kibum", "" ], [ "Moon", "Jinyoung", "" ], [ "Park", "Chanyoung", "" ] ]
2212.00506
Alberto Pozanco
Alberto Pozanco, Daniel Borrajo
Fairness in Multi-Agent Planning
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In cooperative Multi-Agent Planning (MAP), a set of goals has to be achieved by a set of agents. Independently of whether they perform a pre-assignment of goals to agents or they directly search for a solution without any goal assignment, most previous works did not focus on a fair distribution/achievement of goals by agents. This paper adapts well-known fairness schemes to MAP, and introduces two novel approaches to generate cost-aware fair plans. The first one solves an optimization problem to pre-assign goals to agents, and then solves a centralized MAP task using that assignment. The second one consists of a planning-based compilation that allows solving the joint problem of goal assignment and planning while taking into account the given fairness scheme. Empirical results in several standard MAP benchmarks show that these approaches outperform different baselines. They also show that there is no need to sacrifice much plan cost to generate fair plans.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 13:58:46 GMT" }, { "version": "v2", "created": "Mon, 22 May 2023 10:55:25 GMT" } ]
1,684,800,000,000
[ [ "Pozanco", "Alberto", "" ], [ "Borrajo", "Daniel", "" ] ]
2212.00543
Bin Liu
Bin Liu, Jin Wang, Kaiwei Sun, Grigorios Tsoumakas
Fine-Grained Selective Similarity Integration for Drug-Target Interaction Prediction
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of drug-target interactions (DTIs) is a pivotal process in pharmaceutical development. Computational approaches are a promising and efficient alternative to tedious and costly wet-lab experiments for predicting novel DTIs from numerous candidates. Recently, with the availability of abundant heterogeneous biological information from diverse data sources, computational methods have been able to leverage multiple drug and target similarities to boost the performance of DTI prediction. Similarity integration is an effective and flexible strategy to extract crucial information across complementary similarity views, providing a compressed input for any similarity-based DTI prediction model. However, existing similarity integration methods filter and fuse similarities from a global perspective, neglecting the utility of similarity views for each drug and target. In this study, we propose a Fine-Grained Selective similarity integration approach, called FGS, which employs a local interaction consistency-based weight matrix to capture and exploit the importance of similarities at a finer granularity in both similarity selection and combination steps. We evaluate FGS on five DTI prediction datasets under various prediction settings. Experimental results show that our method not only outperforms similarity integration competitors with comparable computational costs, but also achieves better prediction performance than state-of-the-art DTI prediction approaches by collaborating with conventional base models. Furthermore, case studies on the analysis of similarity weights and on the verification of novel predictions confirm the practical ability of FGS.
[ { "version": "v1", "created": "Thu, 1 Dec 2022 14:50:42 GMT" }, { "version": "v2", "created": "Tue, 21 Mar 2023 12:52:31 GMT" } ]
1,679,443,200,000
[ [ "Liu", "Bin", "" ], [ "Wang", "Jin", "" ], [ "Sun", "Kaiwei", "" ], [ "Tsoumakas", "Grigorios", "" ] ]
2212.00800
Martin Korth
Martin Korth
The purpose of qualia: What if human thinking is not (only) information processing?
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Despite recent breakthroughs in the field of artificial intelligence (AI) - or more specifically machine learning (ML) algorithms for object recognition and natural language processing - it seems to be the majority view that current AI approaches are still no real match for natural intelligence (NI). More importantly, philosophers have collected a long catalogue of features which imply that NI works differently from current AI not only in a gradual sense, but in a more substantial way: NI is closely related to consciousness, intentionality and experiential features like qualia (the subjective contents of mental states) and allows for understanding (e.g., taking insight into causal relationships instead of 'blindly' relying on correlations), as well as aesthetical and ethical judgement beyond what we can put into (explicit or data-induced implicit) rules to program machines with. Additionally, Psychologists find NI to range from unconscious psychological processes to focused information processing, and from embodied and implicit cognition to 'true' agency and creativity. NI thus seems to transcend any neurobiological functionalism by operating on 'bits of meaning' instead of information in the sense of data, quite unlike both the 'good old fashioned', symbolic AI of the past, as well as the current wave of deep neural network based, 'sub-symbolic' AI, which both share the idea of thinking as (only) information processing. In the following I propose an alternative view of NI as information processing plus 'bundle pushing', discuss an example which illustrates how bundle pushing can cut information processing short, and suggest first ideas for scientific experiments in neuro-biology and information theory as further investigations.
[ { "version": "v1", "created": "Tue, 22 Nov 2022 09:45:26 GMT" }, { "version": "v2", "created": "Tue, 6 Dec 2022 12:35:56 GMT" } ]
1,670,371,200,000
[ [ "Korth", "Martin", "" ] ]
2212.00951
Matthew Brown
Youngwon Choi, M. Wasil Wahi-Anwar, Matthew S. Brown
SimpleMind adds thinking to deep neural networks
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deep neural networks (DNNs) detect patterns in data and have shown versatility and strong performance in many computer vision applications. However, DNNs alone are susceptible to obvious mistakes that violate simple, common sense concepts and are limited in their ability to use explicit knowledge to guide their search and decision making. While overall DNN performance metrics may be good, these obvious errors, coupled with a lack of explainability, have prevented widespread adoption for crucial tasks such as medical image analysis. The purpose of this paper is to introduce SimpleMind, an open-source software framework for Cognitive AI focused on medical image understanding. It allows creation of a knowledge base that describes expected characteristics and relationships between image objects in an intuitive human-readable form. The SimpleMind framework brings thinking to DNNs by: (1) providing methods for reasoning with the knowledge base about image content, such as spatial inferencing and conditional reasoning to check DNN outputs; (2) applying process knowledge, in the form of general-purpose software agents, that are chained together to accomplish image preprocessing, DNN prediction, and result post-processing, and (3) performing automatic co-optimization of all knowledge base parameters to adapt agents to specific problems. SimpleMind enables reasoning on multiple detected objects to ensure consistency, providing cross checking between DNN outputs. This machine reasoning improves the reliability and trustworthiness of DNNs through an interpretable model and explainable decisions. Example applications are provided that demonstrate how SimpleMind supports and improves deep neural networks by embedding them within a Cognitive AI framework.
[ { "version": "v1", "created": "Fri, 2 Dec 2022 03:38:20 GMT" } ]
1,670,198,400,000
[ [ "Choi", "Youngwon", "" ], [ "Wahi-Anwar", "M. Wasil", "" ], [ "Brown", "Matthew S.", "" ] ]
2212.00994
Chenxin Zou
Xiaodong Li, Chenxin Zou, Yi Cai, Yuelong Zhu
Knowledge Graph Quality Evaluation under Incomplete Information
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Knowledge graphs (KGs) have attracted more and more attentions because of their fundamental roles in many tasks. Quality evaluation for KGs is thus crucial and indispensable. Existing methods in this field evaluate KGs by either proposing new quality metrics from different dimensions or measuring performances at KG construction stages. However, there are two major issues with those methods. First, they highly rely on raw data in KGs, which makes KGs' internal information exposed during quality evaluation. Second, they consider more about the quality at data level instead of ability level, where the latter one is more important for downstream applications. To address these issues, we propose a knowledge graph quality evaluation framework under incomplete information (QEII). The quality evaluation task is transformed into an adversarial Q&A game between two KGs. Winner of the game is thus considered to have better qualities. During the evaluation process, no raw data is exposed, which ensures information protection. Experimental results on four pairs of KGs demonstrate that, compared with baselines, the QEII implements a reasonable quality evaluation at ability level under incomplete information.
[ { "version": "v1", "created": "Fri, 2 Dec 2022 06:12:10 GMT" }, { "version": "v2", "created": "Mon, 3 Apr 2023 19:46:34 GMT" }, { "version": "v3", "created": "Wed, 12 Apr 2023 07:53:54 GMT" } ]
1,681,344,000,000
[ [ "Li", "Xiaodong", "" ], [ "Zou", "Chenxin", "" ], [ "Cai", "Yi", "" ], [ "Zhu", "Yuelong", "" ] ]
2212.01022
Indranil Saha
Nikhil Kumar Singh and Indranil Saha
STL-Based Synthesis of Feedback Controllers Using Reinforcement Learning
Full version of the paper to be published in AAAI 2023
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deep Reinforcement Learning (DRL) has the potential to be used for synthesizing feedback controllers (agents) for various complex systems with unknown dynamics. These systems are expected to satisfy diverse safety and liveness properties best captured using temporal logic. In RL, the reward function plays a crucial role in specifying the desired behaviour of these agents. However, the problem of designing the reward function for an RL agent to satisfy complex temporal logic specifications has received limited attention in the literature. To address this, we provide a systematic way of generating rewards in real-time by using the quantitative semantics of Signal Temporal Logic (STL), a widely used temporal logic to specify the behaviour of cyber-physical systems. We propose a new quantitative semantics for STL having several desirable properties, making it suitable for reward generation. We evaluate our STL-based reinforcement learning mechanism on several complex continuous control benchmarks and compare our STL semantics with those available in the literature in terms of their efficacy in synthesizing the controller agent. Experimental results establish our new semantics to be the most suitable for synthesizing feedback controllers for complex continuous dynamical systems through reinforcement learning.
[ { "version": "v1", "created": "Fri, 2 Dec 2022 08:31:46 GMT" } ]
1,670,198,400,000
[ [ "Singh", "Nikhil Kumar", "" ], [ "Saha", "Indranil", "" ] ]
2212.02064
Can Chang
Can Chang, Ni Mu, Jiajun Wu, Ling Pan, Huazhe Xu
E-MAPP: Efficient Multi-Agent Reinforcement Learning with Parallel Program Guidance
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
A critical challenge in multi-agent reinforcement learning(MARL) is for multiple agents to efficiently accomplish complex, long-horizon tasks. The agents often have difficulties in cooperating on common goals, dividing complex tasks, and planning through several stages to make progress. We propose to address these challenges by guiding agents with programs designed for parallelization, since programs as a representation contain rich structural and semantic information, and are widely used as abstractions for long-horizon tasks. Specifically, we introduce Efficient Multi-Agent Reinforcement Learning with Parallel Program Guidance(E-MAPP), a novel framework that leverages parallel programs to guide multiple agents to efficiently accomplish goals that require planning over $10+$ stages. E-MAPP integrates the structural information from a parallel program, promotes the cooperative behaviors grounded in program semantics, and improves the time efficiency via a task allocator. We conduct extensive experiments on a series of challenging, long-horizon cooperative tasks in the Overcooked environment. Results show that E-MAPP outperforms strong baselines in terms of the completion rate, time efficiency, and zero-shot generalization ability by a large margin.
[ { "version": "v1", "created": "Mon, 5 Dec 2022 07:02:05 GMT" } ]
1,670,284,800,000
[ [ "Chang", "Can", "" ], [ "Mu", "Ni", "" ], [ "Wu", "Jiajun", "" ], [ "Pan", "Ling", "" ], [ "Xu", "Huazhe", "" ] ]
2212.02098
Taewoon Kim
Taewoon Kim, Michael Cochez, Vincent Fran\c{c}ois-Lavet, Mark Neerincx, Piek Vossen
A Machine with Short-Term, Episodic, and Semantic Memory Systems
null
Proceedings of the AAAI Conference on Artificial Intelligence (2023), 37(1), 48-56
10.1609/aaai.v37i1.25075
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Inspired by the cognitive science theory of the explicit human memory systems, we have modeled an agent with short-term, episodic, and semantic memory systems, each of which is modeled with a knowledge graph. To evaluate this system and analyze the behavior of this agent, we designed and released our own reinforcement learning agent environment, "the Room", where an agent has to learn how to encode, store, and retrieve memories to maximize its return by answering questions. We show that our deep Q-learning based agent successfully learns whether a short-term memory should be forgotten, or rather be stored in the episodic or semantic memory systems. Our experiments indicate that an agent with human-like memory systems can outperform an agent without this memory structure in the environment.
[ { "version": "v1", "created": "Mon, 5 Dec 2022 08:34:23 GMT" }, { "version": "v2", "created": "Sat, 8 Jul 2023 10:50:19 GMT" } ]
1,689,033,600,000
[ [ "Kim", "Taewoon", "" ], [ "Cochez", "Michael", "" ], [ "François-Lavet", "Vincent", "" ], [ "Neerincx", "Mark", "" ], [ "Vossen", "Piek", "" ] ]
2212.02823
Siddharth Srivastava
Siddharth Srivastava
Hierarchical Decomposition and Analysis for Generalized Planning
Accepted for publication at JAIR
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents new methods for analyzing and evaluating generalized plans that can solve broad classes of related planning problems. Although synthesis and learning of generalized plans has been a longstanding goal in AI, it remains challenging due to fundamental gaps in methods for analyzing the scope and utility of a given generalized plan. This paper addresses these gaps by developing a new conceptual framework along with proof techniques and algorithmic processes for assessing termination and goal-reachability related properties of generalized plans. We build upon classic results from graph theory to decompose generalized plans into smaller components that are then used to derive hierarchical termination arguments. These methods can be used to determine the utility of a given generalized plan, as well as to guide the synthesis and learning processes for generalized plans. We present theoretical as well as empirical results illustrating the scope of this new approach. Our analysis shows that this approach significantly extends the class of generalized plans that can be assessed automatically, thereby reducing barriers in the synthesis and learning of reliable generalized plans.
[ { "version": "v1", "created": "Tue, 6 Dec 2022 08:37:21 GMT" }, { "version": "v2", "created": "Mon, 26 Jun 2023 18:43:18 GMT" } ]
1,687,910,400,000
[ [ "Srivastava", "Siddharth", "" ] ]
2212.02893
Guillaume Escamocher
Guillaume Escamocher, Barry O'Sullivan
Generation and Prediction of Difficult Model Counting Instances
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
We present a way to create small yet difficult model counting instances. Our generator is highly parameterizable: the number of variables of the instances it produces, as well as their number of clauses and the number of literals in each clause, can all be set to any value. Our instances have been tested on state of the art model counters, against other difficult model counting instances, in the Model Counting Competition. The smallest unsolved instances of the competition, both in terms of number of variables and number of clauses, were ours. We also observe a peak of difficulty when fixing the number of variables and varying the number of clauses, in both random instances and instances built by our generator. Using these results, we predict the parameter values for which the hardest to count instances will occur.
[ { "version": "v1", "created": "Tue, 6 Dec 2022 11:36:02 GMT" } ]
1,670,371,200,000
[ [ "Escamocher", "Guillaume", "" ], [ "O'Sullivan", "Barry", "" ] ]
2212.02951
Ziqi Wang
Ziqi Wang, Tianye Shu, Jialin Liu
State Space Closure: Revisiting Endless Online Level Generation via Reinforcement Learning
Accepted by the IEEE Transactions on Games
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we revisit endless online level generation with the recently proposed experience-driven procedural content generation via reinforcement learning (EDRL) framework. Inspired by an observation that EDRL tends to generate recurrent patterns, we formulate a notion of state space closure which makes any stochastic state appeared possibly in an infinite-horizon online generation process can be found within a finite-horizon. Through theoretical analysis, we find that even though state space closure arises a concern about diversity, it generalises EDRL trained with a finite-horizon to the infinite-horizon scenario without deterioration of content quality. Moreover, we verify the quality and the diversity of contents generated by EDRL via empirical studies, on the widely used Super Mario Bros. benchmark. Experimental results reveal that the diversity of levels generated by EDRL is limited due to the state space closure, whereas their quality does not deteriorate in a horizon which is longer than the one specified in the training. Concluding our outcomes and analysis, future work on endless online level generation via reinforcement learning should address the issue of diversity while assuring the occurrence of state space closure and quality.
[ { "version": "v1", "created": "Tue, 6 Dec 2022 13:12:16 GMT" }, { "version": "v2", "created": "Fri, 24 Mar 2023 10:23:22 GMT" } ]
1,679,875,200,000
[ [ "Wang", "Ziqi", "" ], [ "Shu", "Tianye", "" ], [ "Liu", "Jialin", "" ] ]
2212.03178
Mohsen Hooshmand
Alireza Abdi, Masih Hajsaeedi, Mohsen Hooshmand
Longest Common Substring in Longest Common Subsequence's Solution Service: A Novel Hyper-Heuristic
null
null
10.1016/j.compbiolchem.2023.107882
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Longest Common Subsequence (LCS) is the problem of finding a subsequence among a set of strings that has two properties of being common to all and is the longest. The LCS has applications in computational biology and text editing, among many others. Due to the NP-hardness of the general longest common subsequence, numerous heuristic algorithms and solvers have been proposed to give the best possible solution for different sets of strings. None of them has the best performance for all types of sets. In addition, there is no method to specify the type of a given set of strings. Besides that, the available hyper-heuristic is not efficient and fast enough to solve this problem in real-world applications. This paper proposes a novel hyper-heuristic to solve the longest common subsequence problem using a novel criterion to classify a set of strings based on their similarity. To do this, we offer a general stochastic framework to identify the type of a given set of strings. Following that, we introduce the set similarity dichotomizer ($S^2D$) algorithm based on the framework that divides the type of sets into two. This algorithm is introduced for the first time in this paper and opens a new way to go beyond the current LCS solvers. Then, we present a novel hyper-heuristic that exploits the $S^2D$ and one of the internal properties of the set to choose the best matching heuristic among a set of heuristics. We compare the results on benchmark datasets with the best heuristics and hyper-heuristics. The results show a higher performance of our proposed hyper-heuristic in both quality of solutions and run time factors.
[ { "version": "v1", "created": "Sat, 3 Dec 2022 07:52:57 GMT" } ]
1,686,096,000,000
[ [ "Abdi", "Alireza", "" ], [ "Hajsaeedi", "Masih", "" ], [ "Hooshmand", "Mohsen", "" ] ]
2212.03387
Matthew Guzdial
Kynan Sorochan, Matthew Guzdial
Generating Real-Time Strategy Game Units Using Search-Based Procedural Content Generation and Monte Carlo Tree Search
7 pages, 3 figures, Experimental AI in Games Workshop
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Real-Time Strategy (RTS) game unit generation is an unexplored area of Procedural Content Generation (PCG) research, which leaves the question of how to automatically generate interesting and balanced units unanswered. Creating unique and balanced units can be a difficult task when designing an RTS game, even for humans. Having an automated method of designing units could help developers speed up the creation process as well as find new ideas. In this work we propose a method of generating balanced and useful RTS units. We draw on Search-Based PCG and a fitness function based on Monte Carlo Tree Search (MCTS). We present ten units generated by our system designed to be used in the game microRTS, as well as results demonstrating that these units are unique, useful, and balanced.
[ { "version": "v1", "created": "Wed, 7 Dec 2022 00:43:30 GMT" } ]
1,670,457,600,000
[ [ "Sorochan", "Kynan", "" ], [ "Guzdial", "Matthew", "" ] ]
2212.03467
Christopher Jerrett
Yue Han, Christopher Jerrett, Elliot Anshelevich
Optimizing Multiple Simultaneous Objectives for Voting and Facility Location
To be published in the Proceedings of 37th Conference on Artificial Intelligence (AAAI 2023)
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the classic facility location setting, where we are given $n$ clients and $m$ possible facility locations in some arbitrary metric space, and want to choose a location to build a facility. The exact same setting also arises in spatial social choice, where voters are the clients and the goal is to choose a candidate or outcome, with the distance from a voter to an outcome representing the cost of this outcome for the voter (e.g., based on their ideological differences). Unlike most previous work, we do not focus on a single objective to optimize (e.g., the total distance from clients to the facility, or the maximum distance, etc.), but instead attempt to optimize several different objectives simultaneously. More specifically, we consider the $l$-centrum family of objectives, which includes the total distance, max distance, and many others. We present tight bounds on how well any pair of such objectives (e.g., max and sum) can be simultaneously approximated compared to their optimum outcomes. In particular, we show that for any such pair of objectives, it is always possible to choose an outcome which simultaneously approximates both objectives within a factor of $1+\sqrt{2}$, and give a precise characterization of how this factor improves as the two objectives being optimized become more similar. For $q>2$ different centrum objectives, we show that it is always possible to approximate all $q$ of these objectives within a small constant, and that this constant approaches 3 as $q\rightarrow \infty$. Our results show that when optimizing only a few simultaneous objectives, it is always possible to form an outcome which is a significantly better than 3 approximation for all of these objectives.
[ { "version": "v1", "created": "Wed, 7 Dec 2022 05:12:40 GMT" }, { "version": "v2", "created": "Sat, 10 Dec 2022 18:01:15 GMT" } ]
1,670,889,600,000
[ [ "Han", "Yue", "" ], [ "Jerrett", "Christopher", "" ], [ "Anshelevich", "Elliot", "" ] ]
2212.04401
Ida Momennejad
Ida Momennejad
A Rubric for Human-like Agents and NeuroAI
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-sa/4.0/
Researchers across cognitive, neuro-, and computer sciences increasingly reference human-like artificial intelligence and neuroAI. However, the scope and use of the terms are often inconsistent. Contributed research ranges widely from mimicking behaviour, to testing machine learning methods as neurally plausible hypotheses at the cellular or functional levels, or solving engineering problems. However, it cannot be assumed nor expected that progress on one of these three goals will automatically translate to progress in others. Here a simple rubric is proposed to clarify the scope of individual contributions, grounded in their commitments to human-like behaviour, neural plausibility, or benchmark/engineering goals. This is clarified using examples of weak and strong neuroAI and human-like agents, and discussing the generative, corroborate, and corrective ways in which the three dimensions interact with one another. The author maintains that future progress in artificial intelligence will need strong interactions across the disciplines, with iterative feedback loops and meticulous validity tests, leading to both known and yet-unknown advances that may span decades to come.
[ { "version": "v1", "created": "Thu, 8 Dec 2022 16:59:40 GMT" } ]
1,670,544,000,000
[ [ "Momennejad", "Ida", "" ] ]
2212.04419
Conor Muldoon
Conor Muldoon, Levent G\"org\"u, John J. O'Sullivan, Wim G. Meijer, Gregory M. P. O'Hare
Mining Explainable Predictive Features for Water Quality Management
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
With water quality management processes, identifying and interpreting relationships between features, such as location and weather variable tuples, and water quality variables, such as levels of bacteria, is key to gaining insights and identifying areas where interventions should be made. There is a need for a search process to identify the locations and types of phenomena that are influencing water quality and a need to explain how the quality is being affected and which factors are most relevant. This paper addresses both of these issues. A process is developed for collecting data for features that represent a variety of variables over a spatial region and which are used for training models and inference. An analysis of the performance of the features is undertaken using the models and Shapley values. Shapley values originated in cooperative game theory and can be used to aid in the interpretation of machine learning results. Evaluations are performed using several machine learning algorithms and water quality data from the Dublin Grand Canal basin.
[ { "version": "v1", "created": "Thu, 8 Dec 2022 17:18:50 GMT" }, { "version": "v2", "created": "Fri, 9 Dec 2022 15:47:59 GMT" } ]
1,670,803,200,000
[ [ "Muldoon", "Conor", "" ], [ "Görgü", "Levent", "" ], [ "O'Sullivan", "John J.", "" ], [ "Meijer", "Wim G.", "" ], [ "O'Hare", "Gregory M. P.", "" ] ]
2212.04576
Duo Xu
Duo Xu, Faramarz Fekri
Generalizing LTL Instructions via Future Dependent Options
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
In many real-world applications of control system and robotics, linear temporal logic (LTL) is a widely-used task specification language which has a compositional grammar that naturally induces temporally extended behaviours across tasks, including conditionals and alternative realizations. An important problem in RL with LTL tasks is to learn task-conditioned policies which can zero-shot generalize to new LTL instructions not observed in the training. However, because symbolic observation is often lossy and LTL tasks can have long time horizon, previous works can suffer from issues such as training sampling inefficiency and infeasibility or sub-optimality of the found solutions. In order to tackle these issues, this paper proposes a novel multi-task RL algorithm with improved learning efficiency and optimality. To achieve the global optimality of task completion, we propose to learn options dependent on the future subgoals via a novel off-policy approach. In order to propagate the rewards of satisfying future subgoals back more efficiently, we propose to train a multi-step value function conditioned on the subgoal sequence which is updated with Monte Carlo estimates of multi-step discounted returns. In experiments on three different domains, we evaluate the LTL generalization capability of the agent trained by the proposed method, showing its advantage over previous representative methods.
[ { "version": "v1", "created": "Thu, 8 Dec 2022 21:44:18 GMT" }, { "version": "v2", "created": "Tue, 13 Dec 2022 04:29:02 GMT" }, { "version": "v3", "created": "Thu, 15 Dec 2022 12:52:01 GMT" } ]
1,671,148,800,000
[ [ "Xu", "Duo", "" ], [ "Fekri", "Faramarz", "" ] ]
2212.04589
Eduardo C. Garrido-Merch\'an
Eduardo C. Garrido-Merch\'an, Javier S\'anchez-Ca\~nizares
Optimizing Integrated Information with a Prior Guided Random Search Algorithm
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Integrated information theory (IIT) is a theoretical framework that provides a quantitative measure to estimate when a physical system is conscious, its degree of consciousness, and the complexity of the qualia space that the system is experiencing. Formally, IIT rests on the assumption that if a surrogate physical system can fully embed the phenomenological properties of consciousness, then the system properties must be constrained by the properties of the qualia being experienced. Following this assumption, IIT represents the physical system as a network of interconnected elements that can be thought of as a probabilistic causal graph, $\mathcal{G}$, where each node has an input-output function and all the graph is encoded in a transition probability matrix. Consequently, IIT's quantitative measure of consciousness, $\Phi$, is computed with respect to the transition probability matrix and the present state of the graph. In this paper, we provide a random search algorithm that is able to optimize $\Phi$ in order to investigate, as the number of nodes increases, the structure of the graphs that have higher $\Phi$. We also provide arguments that show the difficulties of applying more complex black-box search algorithms, such as Bayesian optimization or metaheuristics, in this particular problem. Additionally, we suggest specific research lines for these techniques to enhance the search algorithm that guarantees maximal $\Phi$.
[ { "version": "v1", "created": "Thu, 8 Dec 2022 22:34:00 GMT" } ]
1,670,803,200,000
[ [ "Garrido-Merchán", "Eduardo C.", "" ], [ "Sánchez-Cañizares", "Javier", "" ] ]
2212.04891
Xunzhu Tang
Shi Wang and Daniel Tang and Luchen Zhang and Huilin Li and Ding Han
HieNet: Bidirectional Hierarchy Framework for Automated ICD Coding
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
International Classification of Diseases (ICD) is a set of classification codes for medical records. Automated ICD coding, which assigns unique International Classification of Diseases codes with each medical record, is widely used recently for its efficiency and error-prone avoidance. However, there are challenges that remain such as heterogeneity, label unbalance, and complex relationships between ICD codes. In this work, we proposed a novel Bidirectional Hierarchy Framework(HieNet) to address the challenges. Specifically, a personalized PageRank routine is developed to capture the co-relation of codes, a bidirectional hierarchy passage encoder to capture the codes' hierarchical representations, and a progressive predicting method is then proposed to narrow down the semantic searching space of prediction. We validate our method on two widely used datasets. Experimental results on two authoritative public datasets demonstrate that our proposed method boosts state-of-the-art performance by a large margin.
[ { "version": "v1", "created": "Fri, 9 Dec 2022 14:51:12 GMT" } ]
1,670,803,200,000
[ [ "Wang", "Shi", "" ], [ "Tang", "Daniel", "" ], [ "Zhang", "Luchen", "" ], [ "Li", "Huilin", "" ], [ "Han", "Ding", "" ] ]
2212.05412
Kebing Jin
Kebing Jin, Yingkai Xiao, Hankz Hankui Zhuo, Renyong Ma
A Hierarchical Temporal Planning-Based Approach for Dynamic Hoist Scheduling Problems
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by-nc-nd/4.0/
Hoist scheduling has become a bottleneck in electroplating industry applications with the development of autonomous devices. Although there are a few approaches proposed to target at the challenging problem, they generally cannot scale to large-scale scheduling problems. In this paper, we formulate the hoist scheduling problem as a new temporal planning problem in the form of adapted PDDL, and propose a novel hierarchical temporal planning approach to efficiently solve the scheduling problem. Additionally, we provide a collection of real-life benchmark instances that can be used to evaluate solution methods for the problem. We exhibit that the proposed approach is able to efficiently find solutions of high quality for large-scale real-life benchmark instances, with comparison to state-of-the-art baselines.
[ { "version": "v1", "created": "Sun, 11 Dec 2022 05:30:44 GMT" } ]
1,670,889,600,000
[ [ "Jin", "Kebing", "" ], [ "Xiao", "Yingkai", "" ], [ "Zhuo", "Hankz Hankui", "" ], [ "Ma", "Renyong", "" ] ]
2212.06064
Leonardo Felizardo Kanashiro
Leonardo Kanashiro Felizardo, Francisco Caio Lima Paiva, Anna Helena Reali Costa, Emilio Del-Moral-Hernandez
Reinforcement Learning Applied to Trading Systems: A Survey
38 pages
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Financial domain tasks, such as trading in market exchanges, are challenging and have long attracted researchers. The recent achievements and the consequent notoriety of Reinforcement Learning (RL) have also increased its adoption in trading tasks. RL uses a framework with well-established formal concepts, which raises its attractiveness in learning profitable trading strategies. However, RL use without due attention in the financial area can prevent new researchers from following standards or failing to adopt relevant conceptual guidelines. In this work, we embrace the seminal RL technical fundamentals, concepts, and recommendations to perform a unified, theoretically-grounded examination and comparison of previous research that could serve as a structuring guide for the field of study. A selection of twenty-nine articles was reviewed under our classification that considers RL's most common formulations and design patterns from a large volume of available studies. This classification allowed for precise inspection of the most relevant aspects regarding data input, preprocessing, state and action composition, adopted RL techniques, evaluation setups, and overall results. Our analysis approach organized around fundamental RL concepts allowed for a clear identification of current system design best practices, gaps that require further investigation, and promising research opportunities. Finally, this review attempts to promote the development of this field of study by facilitating researchers' commitment to standards adherence and helping them to avoid straying away from the RL constructs' firm ground.
[ { "version": "v1", "created": "Tue, 1 Nov 2022 21:26:12 GMT" } ]
1,670,889,600,000
[ [ "Felizardo", "Leonardo Kanashiro", "" ], [ "Paiva", "Francisco Caio Lima", "" ], [ "Costa", "Anna Helena Reali", "" ], [ "Del-Moral-Hernandez", "Emilio", "" ] ]
2212.06330
Shuqiang Wang
Changwei Gong, Changhong Jing, Ye Li, Xinan Liu, Zuxin Chen, Shuqiang Wang
Generative artificial intelligence-enabled dynamic detection of nicotine-related circuits
null
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The identification of addiction-related circuits is critical for explaining addiction processes and developing addiction treatments. And models of functional addiction circuits developed from functional imaging are an effective tool for discovering and verifying addiction circuits. However, analyzing functional imaging data of addiction and detecting functional addiction circuits still have challenges. We have developed a data-driven and end-to-end generative artificial intelligence(AI) framework to address these difficulties. The framework integrates dynamic brain network modeling and novel network architecture networks architecture, including temporal graph Transformer and contrastive learning modules. A complete workflow is formed by our generative AI framework: the functional imaging data, from neurobiological experiments, and computational modeling, to end-to-end neural networks, is transformed into dynamic nicotine addiction-related circuits. It enables the detection of addiction-related brain circuits with dynamic properties and reveals the underlying mechanisms of addiction.
[ { "version": "v1", "created": "Tue, 13 Dec 2022 02:21:22 GMT" } ]
1,670,976,000,000
[ [ "Gong", "Changwei", "" ], [ "Jing", "Changhong", "" ], [ "Li", "Ye", "" ], [ "Liu", "Xinan", "" ], [ "Chen", "Zuxin", "" ], [ "Wang", "Shuqiang", "" ] ]
2212.06564
Sergey Zeltyn Dr.
Sergey Zeltyn, Segev Shlomov, Avi Yaeli, Alon Oved
Prescriptive Process Monitoring in Intelligent Process Automation with Chatbot Orchestration
IJCAI 2022 Workshop on Process Management in the AI era (PMAI)
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Business processes that involve AI-powered automation have been gaining importance and market share in recent years. These business processes combine the characteristics of classical business process management, goal-driven chatbots, conversational recommendation systems, and robotic process automation. In the new context, prescriptive process monitoring demands innovative approaches. Unfortunately, data logs from these new processes are still not available in the public domain. We describe the main challenges in this new domain and introduce a synthesized dataset that is based on an actual use case of intelligent process automation with chatbot orchestration. Using this dataset, we demonstrate crowd-wisdom and goal-driven approaches to prescriptive process monitoring.
[ { "version": "v1", "created": "Tue, 13 Dec 2022 13:34:08 GMT" } ]
1,670,976,000,000
[ [ "Zeltyn", "Sergey", "" ], [ "Shlomov", "Segev", "" ], [ "Yaeli", "Avi", "" ], [ "Oved", "Alon", "" ] ]
2212.07226
Andrea Micheli
Andrea Micheli
An Efficient Incremental Simple Temporal Network Data Structure for Temporal Planning
V2: Fixed a typo in the algorithm pseudocode
null
null
null
cs.AI
http://creativecommons.org/licenses/by-sa/4.0/
One popular technique to solve temporal planning problems consists in decoupling the causal decisions, demanding them to heuristic search, from temporal decisions, demanding them to a simple temporal network (STN) solver. In this architecture, one needs to check the consistency of a series of STNs that are related one another, therefore having methods to incrementally re-use previous computations and that avoid expensive memory duplication is of paramount importance. In this paper, we describe in detail how STNs are used in temporal planning, we identify a clear interface to support this use-case and we present an efficient data-structure implementing this interface that is both time- and memory-efficient. We show that our data structure, called \deltastn, is superior to other state-of-the-art approaches on temporal planning sequences of problems.
[ { "version": "v1", "created": "Wed, 14 Dec 2022 13:57:37 GMT" }, { "version": "v2", "created": "Fri, 11 Aug 2023 13:59:47 GMT" } ]
1,691,971,200,000
[ [ "Micheli", "Andrea", "" ] ]
2212.07523
Laura Giordano
Mario Alviano, Laura Giordano, and Daniele Theseider Dupr\'e
Many-valued Argumentation, Conditionals and a Probabilistic Semantics for Gradual Argumentation
17 pages, 1 figure
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
In this paper we propose a general approach to define a many-valued preferential interpretation of gradual argumentation semantics. The approach allows for conditional reasoning over arguments and boolean combination of arguments, with respect to a class of gradual semantics, through the verification of graded (strict or defeasible) implications over a preferential interpretation. As a proof of concept, in the finitely-valued case, an Answer set Programming approach is proposed for conditional reasoning in a many-valued argumentation semantics of weighted argumentation graphs. The paper also develops and discusses a probabilistic semantics for gradual argumentation, which builds on the many-valued conditional semantics.
[ { "version": "v1", "created": "Wed, 14 Dec 2022 22:10:46 GMT" } ]
1,671,148,800,000
[ [ "Alviano", "Mario", "" ], [ "Giordano", "Laura", "" ], [ "Dupré", "Daniele Theseider", "" ] ]
2212.07996
Stefan Sarkadi
Lars Bengel, Elfia Bezou-Vrakatseli, Lydia Bl\"umel, Federico Castagna, Giulia D'Agostino, Daphne Odekerken, Minal Suresh Patil, Jordan Robinson, Hao Wu, Andreas Xydis
Online Handbook of Argumentation for AI: Volume 3
null
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
This volume contains revised versions of the papers selected for the third volume of the Online Handbook of Argumentation for AI (OHAAI). Previously, formal theories of argument and argument interaction have been proposed and studied, and this has led to the more recent study of computational models of argument. Argumentation, as a field within artificial intelligence (AI), is highly relevant for researchers interested in symbolic representations of knowledge and defeasible reasoning. The purpose of this handbook is to provide an open access and curated anthology for the argumentation research community. OHAAI is designed to serve as a research hub to keep track of the latest and upcoming PhD-driven research on the theory and application of argumentation in all areas related to AI.
[ { "version": "v1", "created": "Thu, 15 Dec 2022 17:49:44 GMT" } ]
1,671,148,800,000
[ [ "Bengel", "Lars", "" ], [ "Bezou-Vrakatseli", "Elfia", "" ], [ "Blümel", "Lydia", "" ], [ "Castagna", "Federico", "" ], [ "D'Agostino", "Giulia", "" ], [ "Odekerken", "Daphne", "" ], [ "Patil", "Minal Suresh", "" ], [ "Robinson", "Jordan", "" ], [ "Wu", "Hao", "" ], [ "Xydis", "Andreas", "" ] ]
2212.08183
Taoan Huang
Taoan Huang, Aaron Ferber, Yuandong Tian, Bistra Dilkina, Benoit Steiner
Local Branching Relaxation Heuristics for Integer Linear Programs
null
null
10.1007/978-3-031-33271-5_7
null
cs.AI
http://creativecommons.org/licenses/by-nc-nd/4.0/
Large Neighborhood Search (LNS) is a popular heuristic algorithm for solving combinatorial optimization problems (COP). It starts with an initial solution to the problem and iteratively improves it by searching a large neighborhood around the current best solution. LNS relies on heuristics to select neighborhoods to search in. In this paper, we focus on designing effective and efficient heuristics in LNS for integer linear programs (ILP) since a wide range of COPs can be represented as ILPs. Local Branching (LB) is a heuristic that selects the neighborhood that leads to the largest improvement over the current solution in each iteration of LNS. LB is often slow since it needs to solve an ILP of the same size as input. Our proposed heuristics, LB-RELAX and its variants, use the linear programming relaxation of LB to select neighborhoods. Empirically, LB-RELAX and its variants compute as effective neighborhoods as LB but run faster. They achieve state-of-the-art anytime performance on several ILP benchmarks.
[ { "version": "v1", "created": "Thu, 15 Dec 2022 22:53:09 GMT" }, { "version": "v2", "created": "Wed, 31 May 2023 18:16:01 GMT" } ]
1,685,664,000,000
[ [ "Huang", "Taoan", "" ], [ "Ferber", "Aaron", "" ], [ "Tian", "Yuandong", "" ], [ "Dilkina", "Bistra", "" ], [ "Steiner", "Benoit", "" ] ]
2212.08626
Deokgun Park
Deokgun Park, Md Ashaduzzaman Rubel Mondol, SM Mazharul Islam, Aishwarya Pothula
Hippocampus-Inspired Cognitive Architecture (HICA) for Operant Conditioning
arXiv admin note: text overlap with arXiv:2108.03793
null
null
null
cs.AI
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The neural implementation of operant conditioning with few trials is unclear. We propose a Hippocampus-Inspired Cognitive Architecture (HICA) as a neural mechanism for operant conditioning. HICA explains a learning mechanism in which agents can learn a new behavior policy in a few trials, as mammals do in operant conditioning experiments. HICA is composed of two different types of modules. One is a universal learning module type that represents a cortical column in the neocortex gray matter. The working principle is modeled as Modulated Heterarchical Prediction Memory (mHPM). In mHPM, each module learns to predict a succeeding input vector given the sequence of the input vectors from lower layers and the context vectors from higher layers. The prediction is fed into the lower layers as a context signal (top-down feedback signaling), and into the higher layers as an input signal (bottom-up feedforward signaling). Rewards modulate the learning rate in those modules to memorize meaningful sequences effectively. In mHPM, each module updates in a local and distributed way compared to conventional end-to-end learning with backpropagation of the single objective loss. This local structure enables the heterarchical network of modules. The second type is an innate, special-purpose module representing various organs of the brain's subcortical system. Modules modeling organs such as the amygdala, hippocampus, and reward center are pre-programmed to enable instinctive behaviors. The hippocampus plays the role of the simulator. It is an autoregressive prediction model of the top-most level signal with a loop structure of memory, while cortical columns are lower layers that provide detailed information to the simulation. The simulation becomes the basis for learning with few trials and the deliberate planning required for operant conditioning.
[ { "version": "v1", "created": "Fri, 16 Dec 2022 18:00:21 GMT" } ]
1,671,408,000,000
[ [ "Park", "Deokgun", "" ], [ "Mondol", "Md Ashaduzzaman Rubel", "" ], [ "Islam", "SM Mazharul", "" ], [ "Pothula", "Aishwarya", "" ] ]
2212.08681
Vishal Pallagani
Vishal Pallagani, Bharath Muppasani, Keerthiram Murugesan, Francesca Rossi, Lior Horesh, Biplav Srivastava, Francesco Fabiano, Andrea Loreggia
Plansformer: Generating Symbolic Plans using Transformers
44 pages including supplementary material
null
null
null
cs.AI
http://creativecommons.org/licenses/by/4.0/
Large Language Models (LLMs) have been the subject of active research, significantly advancing the field of Natural Language Processing (NLP). From BERT to BLOOM, LLMs have surpassed state-of-the-art results in various natural language tasks such as question answering, summarization, and text generation. Many ongoing efforts focus on understanding LLMs' capabilities, including their knowledge of the world, syntax, and semantics. However, extending the textual prowess of LLMs to symbolic reasoning has been slow and predominantly focused on tackling problems related to the mathematical field. In this paper, we explore the use of LLMs for automated planning - a branch of AI concerned with the realization of action sequences (plans) to achieve a goal, typically executed by intelligent agents, autonomous robots, and unmanned vehicles. We introduce Plansformer; an LLM fine-tuned on planning problems and capable of generating plans with favorable behavior in terms of correctness and length with reduced knowledge-engineering efforts. We also demonstrate the adaptability of Plansformer in solving different planning domains with varying complexities, owing to the transfer learning abilities of LLMs. For one configuration of Plansformer, we achieve ~97% valid plans, out of which ~95% are optimal for Towers of Hanoi - a puzzle-solving domain.
[ { "version": "v1", "created": "Fri, 16 Dec 2022 19:06:49 GMT" } ]
1,671,494,400,000
[ [ "Pallagani", "Vishal", "" ], [ "Muppasani", "Bharath", "" ], [ "Murugesan", "Keerthiram", "" ], [ "Rossi", "Francesca", "" ], [ "Horesh", "Lior", "" ], [ "Srivastava", "Biplav", "" ], [ "Fabiano", "Francesco", "" ], [ "Loreggia", "Andrea", "" ] ]