A first approach to the automatic detection of zero subjects, impersonal constructions in portuguese

• Autores: Luz Rello Sánchez, Gabriela Ferraro, Iria Gayo
• Localización: Procesamiento del lenguaje natural, ISSN 1135-5948, Nº. 49, 2012, págs. 163-170
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen
  • español

    Este trabajo constituye un primer intento de abordar la deteccion autom atica de sujetos elididos y de construcciones impersonales en portugues de Brasil, una tarea que no nos consta que se haya llevado a cabo previamente en esta lengua.

    Para ello, creamos un corpus que contiene mas de 5.600 casos anotados con las clases que deben identi carse: sujetos explcitos, sujetos o pronombres omitidos y construcciones impersonales. Estos casos se clasi caron mediante aprendizaje autom atico basado en rasgos lingusticamente motivados. Los resultados obtenidos son modestos, aunque prometedores, y proporcionan una orientacion para futuros trabajos en este ambito.

  • English

    In this paper we present a rst approximation to the automatic detection of zero subjects and impersonal constructions in Brazilian Portuguese. To the best of our knowledge, this is the rst attempt of approaching such task using machine learning in Portuguese. We compiled a corpus containing more than 5,600 instances annotated with the classes to be identi ed: explicit subjects, zero subjects or pronouns and impersonal constructions. We applied machine learning using linguistically motivated features to classify the instances. The results are modest but promising and provide guidance for future work.

• Referencias bibliográficas
  • Artstein, R. and M. Poesio. 2008. Intercoder agreement for computational linguistics. Computational Linguistics, 34(4):555-596.
  • Bergsma, S., D. Lin, and R. Goebel. 2008. Distributional identification of nonreferential pronouns. In Proceedings of the 46th Annual Meeting...
  • Bergsma, S. and D. Yarowsky. 2011. Nada: A robust system for non-referential pronoun detection. Anaphora Processing and Applications, pages...
  • Bick, Eckhard. 2000. The Parsing System Palavras - Automatic Grammatical Analysis of Portuguese in a Constraint Grammar Famework. Aarhus University...
  • Bick, Eckhard. 2010. A dependency-based approach to anaphora annotation. In Extended Activities Proceedings, 9th International Conference...
  • Boyd, A., W. Gegg-Harrison, and D. Byron. 2005. Identifying non-referential it : a machine learning approach incorporating linguistically...
  • Breiman, L. 1984. Classification and regression trees. Chapman & Hall/CRC.
  • Chaves, A. and L. Rino. 2008. The mitkov algorithm for anaphora resolution in portuguese. Computational Processing of the Portuguese Language,...
  • Chomsky, N. 1981. Lectures on government and binding. Mouton de Gruyter, Berlin, New York.
  • Clara, Daniela. 2008. A aquisiÇao da elipse nominal em português europeu - produÇao e compreensao. Ph.D. thesis, Universidade Nova de Lisboa,...
  • Cohen, J. 1960. A coeficient of agreement for nominal scales. Educational and psychological measurement, 20(1):37-46.
  • Cunha, Celso and Lindley Cintra. 1984. Nova Gramática do Português Contemporâneo. Sá da Costa, Lisboa.
  • Danlos, L. 2005. Automatic recognition of French expletive pronoun occurrences. In Robert Dale, Kam-Fai Wong, Jiang Su, and Oi Yee Kwong,...
  • Evans, R. 2001. Applying machine learning: toward an automatic classification of it. Literary and Linguistic Computing, 16(1):45-57.
  • Ferrández, A. and J. Peral. 2000. A computational approach to zero-pronouns in Spanish. In Proceedings of the 38th Annual Meeting of the Association...
  • Fleiss, J. L. 1971. Measuring nominal scale agreement among many raters. Psychological Bulletin, 76(5):378-382.
  • Gayo, I. and L. Rello. 2011. El fenómeno pro-drop en portugués brasileño y español peninsular. In III Congreso Internacional de Lingüística...
  • Karlsson, F. 1990. Constraint grammar as a framework for parsing running text. In Proceedings of the 13th conference on Computational linguistics-Volume...
  • Karlsson, F., A. Voutilainen, and A. Anttila. 1995. Constraint Grammar: a languageindependent system for parsing unrestricted text. Walter...
  • Kato, M. A. and E.V. Negrao. 2000. Brazilian Portuguese and the Null Subject Parameter. Vervuert-Iberoamericana, Frankfurt.
  • Mateus, Maria H., Ana M. Brito, Ines Duarte, Isabel H. Faria, Sónia Frota, Gabriela Matos, Fátima Oliveira, Marina Vigário, and Alina Villalva....
  • Mihaila, C., I. Ilisei, and D. Inkpen. 2011. Zero pronominal anaphora resolution for the romanian language. Research Journal on Computer Science...
  • Mitkov, R. 2002. Anaphora resolution. Longman, London.
  • Mitkov, R. 2010. Discourse processing. In Alexander Clark, Chris Fox, and Shalom Lappin, editors, The handbook of computational linguistics...
  • Ng, V. and C. Cardie. 2002. Identifying anaphoric and non-anaphoric noun phrases to improve coreference resolution. In Proceedings of the...
  • Peral, J. and A. Ferrández. 2000. Generation of Spanish zero-pronouns into English. In D. N. Christodoulakis, editor, Natural Language Processing...
  • Rello, L., R. Baeza-Yates, and R. Mitkov. 2012. Elliphant: Improved automatic detection of zero subjects and impersonal constructions in spanish....
  • Rello, L. and I. Gayo. 2011. Classification criteria for the automatic identification of subject ellipsis and impersonal constructions in...
  • Rello, L. and I. Gayo. 2012. A comparable Portuguese-Spanish corpus with ellipsis annotations. In Proceedings of the 8th international conference...
  • Rello, L. and I. Illisei. 2009. A rule-based approach to the identification of Spanish zero pronouns. In Student Research Workshop. International...
  • Rocha, M. 1999. Coreference resolution in dialogues in english and portuguese. In Proceedings of the Workshop on Coreference and its Applications,...
  • Scott, W.A. 1955. Reliability of content analysis: the case of nominal scale coding. Public Opinion Quarterly.
  • Witten, I. H. and E. Frank. 2005. Data mining: practical machine learning tools and techniques. Morgan Kaufmann, London, 2 edition.
  • Yeh, C. and Y. Chen. 2003. Using zero anaphora resolution to improve text categorization. In Proceedings of the 17th Pacific Asia Conference...
  • Yoshimoto, K. 1988. Identifying zero pronouns in Japanese dialogue. In Proceedings of the 12th International Conference on Computational Linguistics...
  • Zhao, S. and H.T. Ng. 2007. Identification and resolution of Chinese zero pronouns: a machine learning approach. In Proceedings of the 2007...