Abstract
In this paper we describe the QA system developed for taking part in Res-PubliQA 2009. Our system was composed by an IR phase focused on improving QA results, a validation step for removing paragraphs that are not promising and a module based on ngrams overlapping for selecting the final answer. Furthermore, a selection module that uses lexical entailment in combination with ngrams overlapping was developed in English. The IR module achieved very promising results that were improved by the ngram ranking. Moreover, the ranking was slightly improved when lexical entailment was used.
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References
Carreras, X., Chao, I., Padró, L., Padró, M.: FreeLing: An Open-Source Suite of Language Analyzers. In: Proceedings of LREC 2004 (2004)
Herrera, J., Peñas, A., Rodrigo, Á., Verdejo, F.: UNED at PASCAL RTE-2 Challenge. In: Proceedings of the Second PASCAL Recognizing Textual Entailment Workshop (April 2006)
Peñas, A., Forner, P., Sutcliffe, R., Rodrigo, Á., Forascu, C., Alegria, I., Giampiccolo, D., Moreau, N., Osenova, P.: Overview of ResPubliQA 2009: Question Answering Evaluation over European Legislation. In: Peters, C., et al. (eds.) CLEF 2009 Workshop, Part I. LNCS, vol. 6241, pp. 174–196. Springer, Heidelberg (2010)
Peñas, A., Rodrigo, Á., Sama, V., Verdejo, M.F.: Overview of the Answer Validation Exercise 2006. 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. 257–264. Springer, Heidelberg (2007)
Peñas, A., Rodrigo, Á., Verdejo, M.F.: Overview of the Answer Validation Exercise 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. 237–248. Springer, Heidelberg (2008)
Pérez-Iglesias, J., Garrido, G., Rodrigo, Á., Araujo, L., Peñas, A.: Information Retrieval Baselines for the ResPubliQA Task. In: Peters, C., et al. (eds.) CLEF 2009 Workshop, Part I. LNCS, vol. 6241, pp. 253–256. Springer, Heidelberg (2010)
Robertson, S., Walker, S.: Some Simple Effective Approximations to the 2-Poisson Model for Probabilistic Weighted Retrieval. In: Bruce Croft, W., van Rijsbergen, C.J. (eds.) SIGIR, pp. 232–241. ACM/Springer, New york (1994)
Rodrigo, Á., Peñas, A., Herrera, J., Verdejo, F.: The Effect of Entity Recognition on Answer Validation. 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. 483–489. Springer, Heidelberg (2008)
Rodrigo, Á., Peñas, A., Verdejo, F.: Overview of the Answer Validation Exercise 2008. 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. 296–313. Springer, Heidelberg (2009)
Rodrigo, Á., Pérez, J., Peñas, A., Garrido, G., Araujo, L.: Approaching Question Answering by means of Paragraph Validation. In: Working Notes for the CLEF 2009 Workshop, Corfu, Greece (2009)
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Rodrigo, Á., Pérez-Iglesias, J., Peñas, A., Garrido, G., Araujo, L. (2010). Approaching Question Answering by Means of Paragraph Validation. In: Peters, C., et al. Multilingual Information Access Evaluation I. Text Retrieval Experiments. CLEF 2009. Lecture Notes in Computer Science, vol 6241. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15754-7_27
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DOI: https://doi.org/10.1007/978-3-642-15754-7_27
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