Corref-PT: A Semi-Automatic Annotated Portuguese Coreference Corpus

Authors

  • Renata Vieira Pontifical Catholic University of Rio Grande do Sul
  • Amália Mendes University of Lisbon
  • Paulo Quaresma University of Évora
  • Evandro Fonseca Pontifical Catholic University of Rio Grande do Sul
  • Sandra Collovini Pontifical Catholic University of Rio Grande do Sul
  • Sandra Antunes University of Lisbon

DOI:

https://doi.org/10.13053/cys-22-4-3063

Keywords:

Coreference corpus, Portuguese language

Abstract

This paper describes the Portuguese coreference corpus Corref-PT, annotated semi-automatically using the coreference annotation tool CORP, and manually revised with the editing tool Corref Visual. It includes a total of 182 texts, mostly news (corpus CSTNews, corpus LE-PAROLE, FAPESP magazine) but also articles from Wikipedia. The result is a corpus that includes a total of 3898 reference chains. We present the coreference annotation tool CORP, which was built on the basis of deterministic rules, and the editor Corref Visual used for manual revision. We reporton the annotation agreement and on the feedback provided by the annotators regarding the editor andthe complexity of the task. Examples of technical and linguistic issues encountered during the annotation are given and the pros and cons of such approach for corpus construction are discussed. Our motivation was to use of a semi-automatic approach to increase the set of available resources for coreference resolution applications for Portuguese.

Author Biography

Sandra Antunes, University of Lisbon

University of Lisbon

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Published

2018-12-30

Issue

Vol. 22 No. 4 (2018): Topic Trends in Computing Research (Guest Editors: A. Aguilar-Meléndez, E. Moya-Sánchez)

Section

Articles of the Thematic Section

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