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--- |
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license: mit |
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task_categories: |
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- text-classification |
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size_categories: |
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- 10K<n<100K |
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--- |
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# OSS-License-Terms |
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## Introduction |
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We collected 55,183 unique license sentences from 3,238 open-source software (OSS) licenses. From these, we randomly selected 19,883 sentences (36.03%) for joint annotation of license terms and attitudes, forming our supervised dataset. The remaining 35,300 license sentences constitute our unsupervised dataset. This unsupervised dataset is used exclusively for Domain-Adaptive Pre-Training (DAPT) to enhance the model's domain adaptability. During the Supervised Fine-Tuning (SFT) stage, we randomly split the 19,883 annotated sentences from the supervised dataset into training, validation, and test sets at a ratio of 7:1:2, comprising 13,919, 1,988, and 3,976 license sentences, respectively. |
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Based on this dataset, we developed [the first LLM dedicated to identifying OSS license terms](https://huggingface.co/AnonymousAuthors/License-Llama3-8B). [Our work has been accepted for publication in the proceedings of the 47th International Conference on Software Engineering(ICSE 2025).](https://conf.researchr.org/details/icse-2025/icse-2025-industry-challenge-track/6/Exploring-Large-Language-Models-for-Analyzing-Open-Source-License-Conflicts-How-Far-) |
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## Definition of License Terms and Attitudes |
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License terms refer to the formal and standardized descriptions of software usage conditions, with each term representing a type of action a user (licensee) may perform. We collected 27 common license terms, covering 14 rights and 13 obligations. |
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We categorize the attitudes expressed in license terms into three types: MUST, CANNOT, and CAN. These represent what a licensee is obligated to do, prohibited from doing, and permitted to do, respectively, when using and distributing software protected by an OSS license. |
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```python |
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Terms = { |
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'Place Warranty': 'offer warranty protection (or other support), place warranty on the software licensed', |
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'Add License Terms': 'provide additional license terms', |
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'Add Own Notices': 'add own notices in derivative works', |
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'Ask Distribution Fee': 'ask a fee to distribute a copy', |
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'Combine Libraries': 'place side by side with a library (that is not an application or covered work)', |
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'Copy': 'reproduce the original work in copies', |
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'Distribute': 'distribute original or modified derivative works', |
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'Modify': 'modify the software and create derivatives', |
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'Grant Patents': 'grant rights to use copyrighted patents by the licensor, practice patent claims of contributors to the code', |
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'Publicly Display': 'display the original work publicly', |
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'Publicly Perform': 'perform the original work publicly', |
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'Sublicense': 'incorporate the work into something that has a more restrictive license', |
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'Commercial Use': 'use the software for commercial purposes', |
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'Private Use': 'use or modify the software freely or privately without distributing it', |
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'State Changes': 'state significant changes made to the software, cause modified files to carry prominent notices', |
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'Add Statement For Additional Terms': 'place a statement of the additional terms that apply', |
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'Retain Copyright Notice': 'retain the copyright notice in all copies or substantial uses of the work.', |
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'Include License': 'include the full text of license(license copy) in modified software', |
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'Include Notice': 'notice text needs to be distributed (if it exists) with any derivative work', |
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'Offer Source Code': 'disclose your source code when you distribute the software and make the source for the library available', |
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'Rename': 'the name of the derivative work must differ from original, change software name as to not misrepresent them as the original software', |
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'Retain Disclaimer': 'redistributions of source code must retain disclaimer', |
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'Use TradeMark': 'use contributor’s name, trademark or logo', |
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'Give Credit': 'give explicit credit or acknowledgement to the author with the software', |
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'Include Install Instructions': 'include build & install instructions necessary to modify and reinstall the software', |
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'Liable for Damages': 'the licensor cannot be held liable for any damages arising from the use of the software', |
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'Keep Same License': 'distribute the modified or derived work of the software under the terms and conditions of this license' |
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} |
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Attitudes = {"CAN": "Indicates that the licensee can perform the actions, commonly used expressions include: hereby grants to you, you may, you can", |
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"CANNOT": "Indicates that the licensee is not allowed to perform the actions, commonly used expressions include: you may not, you can not, without, prohibit, refuse, disallow, decline, against", |
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"MUST": "Indicates that the licensee must perform the actions, commonly used expressions include: you must, you should, as long as, shall, provided that, ensure that, ask that, have to"} |
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``` |
