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Robust question answering for speech transcripts: UPC experience in QAst 2009

Published: 30 September 2009 Publication History

Abstract

This paper describes the participation of the Technical University of Catalonia in the CLEF 2009 Question Answering on Speech Transcripts track. We have participated in the English and Spanish scenarios of QAST. For both manual and automatic transcripts we have used a robust factual Question Answering that uses minimal syntactic information. We have also developed a NERC designed to handle automatic transcripts. We perform a detailed analysis of our results and draw conclusions relating QA performance to word error rate and the difference between written and spoken questions.

References

[1]
Comas, P.R., Turmo, J.: Robust question answering for speech transcripts: UPC experience in QAst 200. 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, pp. 492-499. Springer, Heidelberg (2009)
[2]
Comas, P.R., Turmo, J.: Spoken document retrieval based on approximated sequence alignment. In: Sojka, P., Horák, A., Kopeček, I., Pala, K. (eds.) TSD 2008. LNCS (LNAI), vol. 5246, pp. 285-292. Springer, Heidelberg (2008)
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Freund, Y., Schapire, R.: Large margin classification using the perceptron algorithm. In: COLT 1998: Proceedings of the Eleventh Annual Conference on Computational Learning Theory (1998)
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Li, X., Roth, D.: Learning question classifiers: The role of semantic information. Journal of Natural Language Engineering (2005)
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Pasca, M.: High-performance, open-domain question answering from large text collections. PhD thesis, Southern Methodist University, Dallas, TX (2001)
[6]
Surdeanu, M., Dominguez-Sal, D., Comas, P.R.: Design and performance analysis of a factoid question answering system for spontaneous speech transcriptions. In: Proceedings of the International Conference on Spoken Language Processing, INTERSPEECH 2006 (2006)
[7]
Turmo, J., Comas, P.R., Rosset, S., Galibert, O., Moreau, N., Mostefa, D., Rosso, P., Buscaldi, D.: Overview of QAST 2009. In: Proceedings of the CLEF 2009 Workshop on Cross-Language Information Retrieval and Evaluation (2009)

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  • (2015)Question Classification by Approximating SemanticsProceedings of the 24th International Conference on World Wide Web10.1145/2740908.2745403(407-417)Online publication date: 18-May-2015
  1. Robust question answering for speech transcripts: UPC experience in QAst 2009

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    cover image Guide Proceedings
    CLEF'09: Proceedings of the 10th cross-language evaluation forum conference on Multilingual information access evaluation: text retrieval experiments
    September 2009
    677 pages
    ISBN:364215753X

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    Springer-Verlag

    Berlin, Heidelberg

    Publication History

    Published: 30 September 2009

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    • (2015)Question Classification by Approximating SemanticsProceedings of the 24th International Conference on World Wide Web10.1145/2740908.2745403(407-417)Online publication date: 18-May-2015

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