Abstract
The Johns Hopkins University Applied Physics Laboratory participated in three of the five tasks of the CLEF-2001 evaluation, monolingual retrieval, bilingual retrieval, and multilingual retrieval. In this paper we describe the fundamental methods we used and we present initial results from three experiments. The first investigation examines whether residual inverse document frequency can improve the term weighting methods used with a linguistically-motivated probabilistic model. The second experi-ment attempts to assess the benefit of various translation resources for cross-language retrieval. Our last effort aims to improve cross-collection score normalization, a task essential for the multilingual problem.
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McNamee, P., Mayfield, J. (2002). JHU/APL Experiments at CLEF: Translation Resources and Score Normalization. In: Peters, C., Braschler, M., Gonzalo, J., Kluck, M. (eds) Evaluation of Cross-Language Information Retrieval Systems. CLEF 2001. Lecture Notes in Computer Science, vol 2406. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45691-0_17
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DOI: https://doi.org/10.1007/3-540-45691-0_17
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