Abstract
The performance of Information Retrieval in the Question Answering system is not satisfactory from our experiences in TREC QA Track. In this article, we take a comparative study to re-examine IR techniques on document retrieval and sentence level retrieval respectively. Our study shows: 1) query reformulation should be a necessary step to achieve a better retrieval performance; 2) The techniques for document retrieval are also effective in sentence level retrieval, and single sentence will be the appropriate retrieval granularity.
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References
Allan, J., Wade, C., Bolivar, A.: Retrieval and Novelty Detection at the Sentence Level. In: Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (2003)
Chang, Y., Xu, H., Bai, S.: TREC 2003 Question Answering Track at CAS-ICT. In: Proceedings of the 12th Text REtrieval Conference (2003)
Clarke, C.L.A., Cormack, G.V., Kisman, D.I.E., Lynam, T.R.: Question Answering by Passage Selection (MultiText experiments for TREC-9). In: Proceedings of the 9th Text REtrieval Conference (2000)
Harman, D., Candela, G.: A Very Fast Prototype Retrieval System Using Statistical Rankin. SIGIR Forum, 100–110 (1989)
Moldovan, D., Harabagiu, S., Girju, R., Morarescu, P., Lacatusu, F., Novischi, A., Badulescu, A., Bolohan, O.: LCC Tools for Question Answering. In: Proceedings of the 11th Text REtrieval Conference (2002)
Monz, C.: Document Retrieval in the Context of Question Answering. In: Proceedings of the 25th European Conference on IR Research (2003)
Roberts, I., Gaizauskas, R.: Evaluating Passage Retrieval Approaches for Question Answering, http://www.dcs.shef.ac.uk/research/resmes/papers/CS0306.pdf
Soubbotin, M.M., Soubbotin, S.M.: Use of Patterns for Detection of Likely Answer Strings: A Systematic Approach. In: Proceedings of the 11th Text REtrieval Conference (2002)
Srihari, R., Li, W.: Information Extraction Supported Question Answer. In: Proceedings of the 8th Text REtrieval Conference (1999)
Tellex, S., Katz, B., Lin, J., Fernandes, A., Marton, G.: Quantitative Evaluation of Passage Retrieval Algorithms for Question Answering. In: Proceedings of the 26th annual international ACM SIGIR conference on Research and Development in Information Retrieval (2003)
Voorhees, E.M.: Overview of TREC 2002 Question Answering Track. In: Proceedings of the 11th Text REtrieval Conference (2002)
Xu, H., Zhang, H., Bai, S.: ICT Experiments in TREC-11 QA Main Task. In: Proceedings of the 11th Text REtrieval Conference (2002)
Xu, H., Yang, Z., Wang, B., Liu, B., Cheng, J., Liu, Y., Yang, Z., Cheng, X., Bai, S.: TREC-11 Experiments at CAS-ICT: Filtering and Web. In: Proceedings of the 11th Text REtrieval Conference (2002)
Yang, Y., Liu, X.: A re-examination of text categorization methods. In: Proceedings of the 22nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (1999)
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© 2005 Springer-Verlag Berlin Heidelberg
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Chang, Y., Xu, H., Bai, S. (2005). A Re-examination of IR Techniques in QA System. In: Su, KY., Tsujii, J., Lee, JH., Kwong, O.Y. (eds) Natural Language Processing – IJCNLP 2004. IJCNLP 2004. Lecture Notes in Computer Science(), vol 3248. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30211-7_8
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DOI: https://doi.org/10.1007/978-3-540-30211-7_8
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