The Application of the Comparable Corpora in Chinese-English Cross-Lingual Information Retrieval |
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Authors: | DU Lin ZHANG Yibo SUN Le and SUN Yufang Chinese Information R&D Center |
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Affiliation: | DU Lin,ZHANG Yibo , SUN Le and SUN Yufang Chinese Information R&D Center,Institute of Software,The Chinese Academy of Sciences Beijing 100080,P.R. China |
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Abstract: | This paper proposes a novel Chinese-English Cross-Lingual Information Retrieval (CECLIR) model PME, in which bilingual dictionary and comparable corpora are used to translate the query terms. The Proximity and mutual information of the term-pairs in the Chinese and English comparable corpora are employed not only to resolve the translation ambiguities but also to perform the query expansion so as to deal with the out-of-vocabulary issues in the CECLIR. The evaluation results show that the query precision of PME algorithm is about 84.4% of the monolingual information retrieval. |
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Keywords: | cross-lingual information retrieval comparable corpus mutual information query expansion |
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