Identification of Anaphoric and Non-Anaphoric Expressions Based on Phrase Structure

• Sandra Collovini UNISINOS
• Rodrigo Goulart UNISINOS
• Renata Vieira UNISINOS

Abstract

One of the problems in anaphora resolution is to identify which expressions are anaphoric and which are non anaphoric. In this work a group of heuristic to identify the expressions as non anaphoric, the implementation of these heuristic in an environment for anaphora resolution (ART - Anaphor Resolution Tool) and an evaluation of the obtained results is presented.

References

Bean, D. L. and Riloff, E. (1999) “Corpus-based Identification of Non-Anaphoric Noun Phrases”. In: Proceedings of the 37th Annual Meeting of the Association for Computational Linguistics, p. 373–380.

Bick, E. (2000) “The Parsing System PALAVRAS: Automatic Grammatical Analysis of Portuguese in a Constraint Grammar Framework”. PhD thesis, Arhus University, Arhus.

Cardie, C. and Wagstaff, K. (1999) “Noun phrase coreference as clustering”. In: Proceedings of the 1999 SIGDAT Conference on Empirical Methods in Natural Language Processing and Very Large Corpora, College Park, p. 82–89.

Gasperin, C.; Vieira, R.; Goulart, R.; Quaresma, P. (2003) “Extrating XML Syntactic Chunks from Portuguese Corpora”. In: Traitement Automatique Dês Langues Minoritaires-TALN, Btaz-sur-mer, France.

Gasperin, C., Goulart, R.; Vieira, R. (2003) “Uma Ferramenta para Resolução Automática de Co-referência”. Anais do Encontro Nacional de Inteligência Artificial (ENIA 2003), Campinas, SP.

McCarthy, J. F. and Lehnert, G. (1995) “Using decision trees for coreference resolution”. In: Proceedings of the 14th International Joint Conference on Artificial Intelligence, Montreal, Canada, p. 1050–1055.

Miorelli, S. (2001) “Extração do Sintagma Nominal em Sentenças em Português”. Dissertação de Mestrado, PUC, Porto Alegre.

Müller, C. and Strube, M. (2000) “MMAX: A tool for the annotation of multi-modal corpora”. In: Proceedings of the IJCAI 2001, Seattle, p. 45–50.

Muller, C.; Stefan, R.; Strube, M. (2002) “Applying Co-training to reference resolution”. In: Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics (ACL-2002), Philadelphia, Penn., p. 352-359.

Ng, V. and Cardie, C. (2002a) “Improving machine learning approaches to coreference resolution”. In: Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics.

Ng, V. and Cardie, C. (2002b) “Identifying Anaphoric and Non-Anaphoric Noun Phrases to Improve Coreference Resolution”. In: Proceedings of the Nineteenth International Conference on Computational Linguistics (COLING-2002), p. 730–736.

Perini, M. (2003) Gramática descritiva do português. São Paulo: Editora Ática, 380 p.

Silva, M. and Koch, I. (1989). Lingüística Aplicada ao Português: Sintaxe. São Paulo: Editora Cortez, 160 p.

Soon, W. M.; Ng, H.wee T.; Lim, D. C. Y. (2001) “A machine learning approach to coreference resolution of noun phrases”. In: Computational Linguistics, p. 521–544.

Uryupina, O. (2003) “High-precision Identification of Discourse New and Unique Noun Phrases”. In: Proceedings of the ACL Student Workshop, Sapporo.

Vieira, R. (1998) “Definite description processing in unrestricted text”. PhD thesis, University of Edinburgh, Edinburgh.

Vieira, V. and Poesio, M. (2000) “An empirically-based system for processing definite descriptions”. In: Computational Linguistics.

Vieira, R.; Salmon-Alt, S.; Schang, E. (2002) “Multilingual corpora annotation for processing definite descriptions”. In: Proceedings of the PorTAL 2002, Faro.

Vieira, R.; Gasperin, C.; Goulart, R.; Salmon-Alt, S. (2003) “From concrete to virtual annotation mark-up language: the case of COMMOn-REFs”. In Proceedings of the (ACL 2003) Workshop on Linguistic Annotation: Getting the Model Right, Sapporo.