Abstract
This paper describes experiments for the CLEF 2008 Robust-WSD task, both for the monolingual (English) and the bilingual (Spanish to English) subtasks. We tried several query and document expansion and translation strategies, with and without the use of the word sense disambiguation results provided by the organizers. All expansions and translations were done using the English and Spanish wordnets as provided by the organizers and no other resource was used. We used Indri as the search engine, which we tuned in the training part. Our main goal was to improve (Cross Lingual) Information Retrieval results using WSD information, and we attained improvements in both mono and bilingual subtasks, with statistically significant differences on the second. Our best systems ranked 4th overall and 3rd overall in the monolingual and bilingual subtasks, respectively.
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Agirre, E., Otegi, A., Rigau, G. (2009). IXA at CLEF 2008 Robust-WSD Task: Using Word Sense Disambiguation for (Cross Lingual) Information Retrieval. In: Peters, C., et al. Evaluating Systems for Multilingual and Multimodal Information Access. CLEF 2008. Lecture Notes in Computer Science, vol 5706. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04447-2_14
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DOI: https://doi.org/10.1007/978-3-642-04447-2_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04446-5
Online ISBN: 978-3-642-04447-2
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