Abstract
Thomson Legal and Regulatory participated in the CLEF-2004 monolingual and bilingual tracks. Monolingual experiments included Portuguese, Russian and Finnish. We investigated a new query structure to handle Finnish compounds. Our main focus was bilingual search from German to French. Our approach used query translation and post-translation pseudo-relevance feedback. We compared two translation models for query translation, and captured compound translations through fertility probabilities. While the fertility-based approach picks good terms, it does not help improve bilingual retrieval. Pseudo-relevance feedback, on the other hand, resulted in improved average precision.
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References
Brown, P., Della Pietra, V., Della Pietra, S., Mercer, R.: The mathematics of statistical machine translation: parameter estimation. Computational Linguistics 19 (1993)
Croft, W.B., Callan, J., Broglio, J.: The INQUERY retrieval system. In: Proceedings of the 3rd International Conference on Database and Expert Systems Applications, Spain (1992)
Turtle, H.: Natural language vs. boolean query evaluation: a comparison of retrieval performance. In: Proceedings of the 17th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Dublin, Ireland, pp. 212–220 (1994)
Savoy, J.: Report on CLEF-2001 experiments: Effective combined query-translation approach. In Evaluation of Cross-Language Information Retrieval Systems. In: Peters, C., Braschler, M., Gonzalo, J., Kluck, M. (eds.) CLEF 2001. LNCS, vol. 2406, p. 27. Springer, Heidelberg (2002)
Sakai, T., Sparck-Jones, K.: Generic summaries for indexing in Information Retrieval. In: Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval, pp. 190–198 (2001)
Haines, D., Croft, W.: Relevance feedback and inference networks. In: Proceedings of the Sixteenth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, pp. 2–11 (1993)
Kraaij, W., Nie, J.Y., Simard, M.: Web-based statistical translation models in cross-language information retrieval. Computational Linguistics 29, 381–419 (2003)
Hull, D., Grefenstette, G.: Querying across languages: a dictionary-based approach to multilingual information retrieval. In: Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, pp. 49–57 (1996)
Sheridan, P., Braschler, M., Schäuble, P.: Cross-lingual information retrieval in a multilingual legal domain. In: Peters, C., Thanos, C. (eds.) ECDL 1997. LNCS, vol. 1324, pp. 253–268. Springer, Heidelberg (1997)
Pirkola, A.: The effects of query structure and dictionary setups in dictionary-based cross-language information retrieval. In: Proceedings of the 21th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Melbourne, Australia, pp. 55–63 (1998)
Och, F.J., Ney, H.: Improved statistical alignment models. In: The 38th Annual Meeting of the Association for Computational Linguistics, Hongkong, China, pp. 440–447 (2000)
Koehn, P.: Europarl: A multilingual corpus for evaluation of machine translation. Draft (2002)
Hedlund, H., Keskustalo, H., Pirkola, A., Airio, E., Järvelin, K.: Utaclir at CLEF 2001 - effects of compound splitting and N-gram techniques. In: Peters, C., Braschler, M., Gonzalo, J., Kluck, M. (eds.) CLEF 2001. LNCS, vol. 2406, pp. 118–136. Springer, Heidelberg (2002)
Monz, C., de Rijke, M.: Shallow morphological analysis in monolingual information retrieval for dutch, german, and italian. In: Peters, C., Braschler, M., Gonzalo, J., Kluck, M. (eds.) CLEF 2001. LNCS, vol. 2406, pp. 262–277. Springer, Heidelberg (2002)
McNamee, P., Mayfield, J., Piatko, C.: A language-independent approach to european text retrieval. In: Peters, C. (ed.) CLEF 2000. LNCS, vol. 2069, pp. 129–139. Springer, Heidelberg (2001)
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Moulinier, I., Williams, K. (2005). Report on Thomson Legal and Regulatory Experiments at CLEF-2004. In: Peters, C., Clough, P., Gonzalo, J., Jones, G.J.F., Kluck, M., Magnini, B. (eds) Multilingual Information Access for Text, Speech and Images. CLEF 2004. Lecture Notes in Computer Science, vol 3491. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11519645_11
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DOI: https://doi.org/10.1007/11519645_11
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