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Question Answering for Portuguese: How Much Is Needed?

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Advances in Artificial Intelligence – SBIA 2010 (SBIA 2010)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 6404))

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Abstract

The task of a Question Answering (QA) system is to automatically answer a question in natural language, searching for information in a given data source, such as structured databases or unstructured natural language documents. In this paper we investigate how much is needed in terms of tools and resources for a QA system for Brazilian Portuguese. In particular we assess the impact of shallow and deep methods and the contribution of different tools and resources in terms of the performance of the system in the task. We argue that a combination of deep and shallow strategies results in optimal performance, but that shallow methods alone may already give adequate results.

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References

  1. Nyberg, E., Mitamura, T., Carbonell, J., Callan, J., Collins, K., Czuba, K., Duggan, M.: The javelin question-answering system at trec 2002. In: TREC (2002)

    Google Scholar 

  2. Kaisser, M.: Qualim at trec 2005: Web-question answering with framenet. In: TREC (2005)

    Google Scholar 

  3. Lin, J.: Evaluation of resources for question answering evaluation. Technical report, University of Maryland, College Park (2005)

    Google Scholar 

  4. Schlaefer, N., Gieselmann, P., Schaaf, T., Waibel, A.: A pattern learning approach to question answering within the ephyra framework. In: Sojka, P., Kopeček, I., Pala, K. (eds.) TSD 2006. LNCS (LNAI), vol. 4188, pp. 687–694. Springer, Heidelberg (2006)

    Chapter  Google Scholar 

  5. Zheng, Z.: Answerbus question answering system. In: HLT Human Language Technology Conference, HLT 2002 (2002)

    Google Scholar 

  6. Quaresma, P., Quintano, L., Rodrigues, I., Saias, J., Salgueiro, P.: The university of Évora’s participation in QA@CLEF-2007. In: Peters, C., Jijkoun, V., Mandl, T., Müller, H., Oard, D.W., Peñas, A., Petras, V., Santos, D. (eds.) CLEF 2007. LNCS, vol. 5152, pp. 253–259. Springer, Heidelberg (2008)

    Google Scholar 

  7. Bick, E.: The Parsing System Palavras - Automatic Grammatical Analysis of Portuguese in a Constraint Grammar Framework. PhD thesis, Department of Linguistics, University of Arhus (2000)

    Google Scholar 

  8. Sarmento, L.: A first step to address biography generation as an iterative qa task. In: Peters, C., Clough, P., Gey, F.C., Karlgren, J., Magnini, B., Oard, D.W., de Rijke, M., Stempfhuber, M. (eds.) CLEF 2006. LNCS, vol. 4730, pp. 473–482. Springer, Heidelberg (2007)

    Chapter  Google Scholar 

  9. Sarmento, L., Oliveira, E.: Making raposa (fox) smarter. In: Peters, C., Jijkoun, V., Mandl, T., Müller, H., Oard, D.W., Peñas, A., Petras, V., Santos, D. (eds.) CLEF 2007. LNCS, vol. 5152, Springer, Heidelberg (2008)

    Google Scholar 

  10. Amaral, C., Figueira, H., Martins, A., Mendes, A., Mendes, P., Pinto, C.: Priberam’s question answering system for portuguese. In: Peters, C., Gey, F.C., Gonzalo, J., Müller, H., Jones, G.J.F., Kluck, M., Magnini, B., de Rijke, M., Giampiccolo, D. (eds.) CLEF 2005. LNCS, vol. 4022, pp. 410–419. Springer, Heidelberg (2006)

    Chapter  Google Scholar 

  11. Costa, L.: First evaluation of esfinge – A question answering system for portuguese. In: Peters, C., Clough, P., Gonzalo, J., Jones, G.J.F., Kluck, M., Magnini, B. (eds.) CLEF 2004. LNCS, vol. 3491, pp. 522–533. Springer, Heidelberg (2005)

    Chapter  Google Scholar 

  12. Costa, L.: Esfinge at clef 2008: Experimenting with answer retrieval patterns. can they help? In: Peters, C., Deselaers, T., Ferro, N., Gonzalo, J., Jones, G.J.F., Kurimo, M., Mandl, T., Peñas, A., Petras, V. (eds.) CLEF 2008. LNCS, vol. 5706. Springer, Heidelberg (2009)

    Google Scholar 

  13. Vallin, A., Magnini, B., Ayache, C., Erbach, G., Peñas, A., de Rijke, M., Rocha, P., Simov, K., Sutcliffe, R.: Overview of the CLEF 2004 multilingual question answering track. In: Peters, C., Clough, P., Gonzalo, J., Jones, G.J.F., Kluck, M., Magnini, B. (eds.) CLEF 2004. LNCS, vol. 3491, pp. 371–391. Springer, Heidelberg (2005)

    Chapter  Google Scholar 

  14. Vallin, A., Magnini, B., Giampiccolo, D., Aunimo, L., Ayache, C., Osenova, P., Peñas, A., de Rijke, M., Sacaleanu, B., Santos, D., Sutcliffe, R.F.E.: Overview of the CLEF 2005 multilingual question answering track. In: Peters, C., Gey, F.C., Gonzalo, J., Müller, H., Jones, G.J.F., Kluck, M., Magnini, B., de Rijke, M., Giampiccolo, D. (eds.) CLEF 2005. LNCS, vol. 4022, pp. 307–331. Springer, Heidelberg (2006)

    Chapter  Google Scholar 

  15. Magnini, B., Giampiccolo, D., Forner, P., Ayache, C., Jijkoun, V., Osenova, P., Peñas, A., Rocha, P., Sacaleanu, B., Sutcliffe, R.: Overview of the CLEF 2006 multilingual question answering track. In: Peters, C., Clough, P., Gey, F.C., Karlgren, J., Magnini, B., Oard, D.W., de Rijke, M., Stempfhuber, M. (eds.) CLEF 2006. LNCS, vol. 4730, pp. 223–256. Springer, Heidelberg (2007)

    Chapter  Google Scholar 

  16. Giampiccolo, D., Forner, P., Peñas, A., Ayache, C.: Overview of the clef 2007 multilingual question answering track. In: Peters, C., Jijkoun, V., Mandl, T., Müller, H., Oard, D.W., Peñas, A., Petras, V., Santos, D. (eds.) CLEF 2007. LNCS, vol. 5152, pp. 200–236. Springer, Heidelberg (2008)

    Chapter  Google Scholar 

  17. Forner, P., Peas, A., Alegria, I., Forascu, C., Moreau, N., Osenova, P., Prokopidis, P., Rocha, P., Sacaleanu, B., Sutcliffe, R., Sang, E.T.K.: Overview of the clef 2008 multilingual question answering track. In: Peters, C., Deselaers, T., Ferro, N., Gonzalo, J., Jones, G.J.F., Kurimo, M., Mandl, T., Peñas, A., Petras, V. (eds.) Evaluating Systems for Multilingual and Multimodal Information Access. LNCS, vol. 5706, pp. 262–295. Springer, Heidelberg (2009)

    Chapter  Google Scholar 

  18. Quinlan, R.: C4.5: Programs for machine learning. Morgan Kaufmann, San Francisco (1993)

    Google Scholar 

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Author information

Authors and Affiliations

  1. Institute of Informatics, Federal University of Rio Grande do Sul, Brazil

    Rodrigo Wilkens & Aline Villavicencio

  2. Department of Computer Sciences, Bath University, UK

    Aline Villavicencio

Authors
  1. Rodrigo Wilkens
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  2. Aline Villavicencio
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Editor information

Editors and Affiliations

  1. FURG, Centro de Ciências Computacionais, Universidade Federal do Rio Grande, Av. Itália, km 8 – Campus Carreiros, 96.201-900, Rio Grande, RS, Brazil

    Antônio Carlos da Rocha Costa

  2. UFRGS, Instituto de Informática, Universidade Federal do Rio Grande do Sul, Av. Bento Conçalves 9.500, 91501-970, Porto Alegre, RS, Brazil

    Rosa Maria Vicari

  3. Departamento de Ciência da Computação, Centro Universitário da FEI, Av. Humberto A. C. Branco 3972, 09850-901, São Bernardo do Campo, SP, Brazil

    Flavio Tonidandel

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Wilkens, R., Villavicencio, A. (2010). Question Answering for Portuguese: How Much Is Needed?. In: da Rocha Costa, A.C., Vicari, R.M., Tonidandel, F. (eds) Advances in Artificial Intelligence – SBIA 2010. SBIA 2010. Lecture Notes in Computer Science(), vol 6404. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16138-4_18

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  • DOI: https://doi.org/10.1007/978-3-642-16138-4_18

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-16137-7

  • Online ISBN: 978-3-642-16138-4

  • eBook Packages: Computer ScienceComputer Science (R0)

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