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metadata
annotations_creators:
  - expert-generated
language_creators:
  - found
languages:
  - catalan
licenses:
  - cc-by-4.0
multilinguality:
  - monolingual
pretty_name: ancora-ca-ner
size_categories:
  - unknown
source_datasets: []
task_categories: []
task_ids: []

Dataset Card Creation Guide

Table of Contents

Dataset Description

Dataset Summary

This is a dataset for Named Entity Recognition (NER) in Catalan. It adapts Ancora corpus for Machine Learning and Language Model evaluation purposes.

AnCora corpus is used under CC-by licence.

This dataset was developed by BSC TeMU as part of the AINA project, and to enrich the Catalan Language Understanding Benchmark (CLUB).

Supported Tasks and Leaderboards

Named Entities Recognition, Language Model

Languages

CA - Catalan

Dataset Structure

Data Instances

Three two-column files, one for each split.

    Fundació B-ORG
    Privada I-ORG
    Fira I-ORG
    de I-ORG
    Manresa I-ORG
    ha O
    fet O
    un O
    balanç O
    de O
    l' O
    activitat O
    del O
    Palau B-LOC
    Firal I-LOC

Data Fields

Every file has two columns, with the word form or punctuation symbol in the first one and the corresponding IOB tag in the second one.

Data Splits

We took the original train, dev and test splits from the [UD version of the corpus] (https://huggingface.co/datasets/universal_dependencies)

  • train: 10,628 examples
  • validation: 1,427 examples
  • test: 1,526 examples

Dataset Creation

Methodology

We adapted the NER labels from Ancora corpus to a word-per-line format.

Curation Rationale

Source Data

Initial Data Collection and Normalization

AnCora consists of a Catalan corpus (AnCora-CA) and a Spanish corpus (AnCora-ES), each of them of 500,000 tokens (some multi-word). The corpora are annotated for linguistic phenomena at different levels. AnCora corpus is mainly based on newswire texts. For more information, refer to Taulé, M., M.A. Martí, M. Recasens (2009). "AnCora: Multilevel Annotated Corpora for Catalan and Spanish”, Proceedings of 6th International Conference on language Resources and Evaluation".

Who are the source language producers?

Catalan Ancora corpus is compiled from articles from the following news outlets: EFE, ACN, El Periodico.

Annotations

Annotation process

We adapted the NER labels from Ancora corpus to a token-per-line, multi-column format.

Who are the annotators?

Original annotators from Ancora corpus.

Personal and Sensitive Information

No personal or sensitive information included.

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

Carlos Rodríguez and Carme Armentano, from BSC-CNS, did the conversion and curation.

Licensing information

Attribution 4.0 International License
This work is licensed under a Attribution 4.0 International License.

Citation Information

@inproceedings{armengol-estape-etal-2021-multilingual,
    title = "Are Multilingual Models the Best Choice for Moderately Under-resourced Languages? {A} Comprehensive Assessment for {C}atalan",
    author = "Armengol-Estap{\'e}, Jordi  and
      Carrino, Casimiro Pio  and
      Rodriguez-Penagos, Carlos  and
      de Gibert Bonet, Ona  and
      Armentano-Oller, Carme  and
      Gonzalez-Agirre, Aitor  and
      Melero, Maite  and
      Villegas, Marta",
    booktitle = "Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021",
    month = aug,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2021.findings-acl.437",
    doi = "10.18653/v1/2021.findings-acl.437",
    pages = "4933--4946",
}

DOI