Datasets:
Tasks:
Token Classification
Sub-tasks:
part-of-speech
Languages:
Portuguese
Size:
10K<n<100K
License:
| annotations_creators: | |
| - expert-generated | |
| language_creators: | |
| - found | |
| language: | |
| - pt | |
| license: | |
| - cc-by-4.0 | |
| multilinguality: | |
| - monolingual | |
| size_categories: | |
| - 10K<n<100K | |
| source_datasets: | |
| - original | |
| task_categories: | |
| - token-classification | |
| task_ids: | |
| - part-of-speech | |
| pretty_name: Mac-Morpho | |
| dataset_info: | |
| features: | |
| - name: id | |
| dtype: string | |
| - name: tokens | |
| sequence: string | |
| - name: pos_tags | |
| sequence: | |
| class_label: | |
| names: | |
| '0': PREP+PROADJ | |
| '1': IN | |
| '2': PREP+PRO-KS | |
| '3': NPROP | |
| '4': PREP+PROSUB | |
| '5': KC | |
| '6': PROPESS | |
| '7': NUM | |
| '8': PROADJ | |
| '9': PREP+ART | |
| '10': KS | |
| '11': PRO-KS | |
| '12': ADJ | |
| '13': ADV-KS | |
| '14': N | |
| '15': PREP | |
| '16': PROSUB | |
| '17': PREP+PROPESS | |
| '18': PDEN | |
| '19': V | |
| '20': PREP+ADV | |
| '21': PCP | |
| '22': CUR | |
| '23': ADV | |
| '24': PU | |
| '25': ART | |
| splits: | |
| - name: train | |
| num_bytes: 12635011 | |
| num_examples: 37948 | |
| - name: test | |
| num_bytes: 3095292 | |
| num_examples: 9987 | |
| - name: validation | |
| num_bytes: 671356 | |
| num_examples: 1997 | |
| download_size: 2463485 | |
| dataset_size: 16401659 | |
| # Dataset Card for Mac-Morpho | |
| ## Table of Contents | |
| - [Dataset Description](#dataset-description) | |
| - [Dataset Summary](#dataset-summary) | |
| - [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards) | |
| - [Languages](#languages) | |
| - [Dataset Structure](#dataset-structure) | |
| - [Data Instances](#data-instances) | |
| - [Data Fields](#data-fields) | |
| - [Data Splits](#data-splits) | |
| - [Dataset Creation](#dataset-creation) | |
| - [Curation Rationale](#curation-rationale) | |
| - [Source Data](#source-data) | |
| - [Annotations](#annotations) | |
| - [Personal and Sensitive Information](#personal-and-sensitive-information) | |
| - [Considerations for Using the Data](#considerations-for-using-the-data) | |
| - [Social Impact of Dataset](#social-impact-of-dataset) | |
| - [Discussion of Biases](#discussion-of-biases) | |
| - [Other Known Limitations](#other-known-limitations) | |
| - [Additional Information](#additional-information) | |
| - [Dataset Curators](#dataset-curators) | |
| - [Licensing Information](#licensing-information) | |
| - [Citation Information](#citation-information) | |
| - [Contributions](#contributions) | |
| ## Dataset Description | |
| - **Homepage:** [Mac-Morpho homepage](http://nilc.icmc.usp.br/macmorpho/) | |
| - **Repository:** [Mac-Morpho repository](http://nilc.icmc.usp.br/macmorpho/) | |
| - **Paper:** [Evaluating word embeddings and a revised corpus for part-of-speech tagging in Portuguese](https://journal-bcs.springeropen.com/articles/10.1186/s13173-014-0020-x) | |
| - **Point of Contact:** [Erick R Fonseca](mailto:[email protected]) | |
| ### Dataset Summary | |
| Mac-Morpho is a corpus of Brazilian Portuguese texts annotated with part-of-speech tags. | |
| Its first version was released in 2003 [1], and since then, two revisions have been made in order | |
| to improve the quality of the resource [2, 3]. | |
| The corpus is available for download split into train, development and test sections. | |
| These are 76%, 4% and 20% of the corpus total, respectively (the reason for the unusual numbers | |
| is that the corpus was first split into 80%/20% train/test, and then 5% of the train section was | |
| set aside for development). This split was used in [3], and new POS tagging research with Mac-Morpho | |
| is encouraged to follow it in order to make consistent comparisons possible. | |
| [1] Aluísio, S., Pelizzoni, J., Marchi, A.R., de Oliveira, L., Manenti, R., Marquiafável, V. 2003. | |
| An account of the challenge of tagging a reference corpus for brazilian portuguese. | |
| In: Proceedings of the 6th International Conference on Computational Processing of the Portuguese Language. PROPOR 2003 | |
| [2] Fonseca, E.R., Rosa, J.L.G. 2013. Mac-morpho revisited: Towards robust part-of-speech. | |
| In: Proceedings of the 9th Brazilian Symposium in Information and Human Language Technology – STIL | |
| [3] Fonseca, E.R., Aluísio, Sandra Maria, Rosa, J.L.G. 2015. | |
| Evaluating word embeddings and a revised corpus for part-of-speech tagging in Portuguese. | |
| Journal of the Brazilian Computer Society. | |
| ### Supported Tasks and Leaderboards | |
| [More Information Needed] | |
| ### Languages | |
| Portuguese | |
| ## Dataset Structure | |
| ### Data Instances | |
| An example from the Mac-Morpho dataset looks as follows: | |
| ``` | |
| { | |
| "id": "0", | |
| "pos_tags": [14, 19, 14, 15, 22, 7, 14, 9, 14, 9, 3, 15, 3, 3, 24], | |
| "tokens": ["Jersei", "atinge", "média", "de", "Cr$", "1,4", "milhão", "na", "venda", "da", "Pinhal", "em", "São", "Paulo", "."] | |
| } | |
| ``` | |
| ### Data Fields | |
| - `id`: id of the sample | |
| - `tokens`: the tokens of the example text | |
| - `pos`: the PoS tags of each token | |
| The PoS tags correspond to this list: | |
| ``` | |
| "PREP+PROADJ", "IN", "PREP+PRO-KS", "NPROP", "PREP+PROSUB", "KC", "PROPESS", "NUM", "PROADJ", "PREP+ART", "KS", | |
| "PRO-KS", "ADJ", "ADV-KS", "N", "PREP", "PROSUB", "PREP+PROPESS", "PDEN", "V", "PREP+ADV", "PCP", "CUR", "ADV", "PU", "ART" | |
| ``` | |
| ### Data Splits | |
| The data is split into train, validation and test set. The split sizes are as follow: | |
| | Train | Val | Test | | |
| | ------ | ----- | ----- | | |
| | 37948 | 1997 | 9987 | | |
| ## Dataset Creation | |
| ### Curation Rationale | |
| [More Information Needed] | |
| ### Source Data | |
| #### Initial Data Collection and Normalization | |
| [More Information Needed] | |
| #### Who are the source language producers? | |
| [More Information Needed] | |
| ### Annotations | |
| #### Annotation process | |
| [More Information Needed] | |
| #### Who are the annotators? | |
| [More Information Needed] | |
| ### Personal and Sensitive Information | |
| [More Information Needed] | |
| ## Considerations for Using the Data | |
| ### Social Impact of Dataset | |
| [More Information Needed] | |
| ### Discussion of Biases | |
| [More Information Needed] | |
| ### Other Known Limitations | |
| [More Information Needed] | |
| ## Additional Information | |
| ### Dataset Curators | |
| [More Information Needed] | |
| ### Licensing Information | |
| [More Information Needed] | |
| ### Citation Information | |
| ``` | |
| @article{fonseca2015evaluating, | |
| title={Evaluating word embeddings and a revised corpus for part-of-speech tagging in Portuguese}, | |
| author={Fonseca, Erick R and Rosa, Jo{\~a}o Lu{\'\i}s G and Alu{\'\i}sio, Sandra Maria}, | |
| journal={Journal of the Brazilian Computer Society}, | |
| volume={21}, | |
| number={1}, | |
| pages={2}, | |
| year={2015}, | |
| publisher={Springer} | |
| } | |
| ``` | |
| ### Contributions | |
| Thanks to [@jonatasgrosman](https://github.com/jonatasgrosman) for adding this dataset. |