The application of the comparable corpora in Chinese-English cross-lingual information retrieval

Authors:
Du Lin;Zhang Yibo;Sun Le;Sun Yufang
Affiliations:
The Chinese Academy of Sciences, Beijing, China;The Chinese Academy of Sciences, Beijing, China;The Chinese Academy of Sciences, Beijing, China;The Chinese Academy of Sciences, Beijing, China
Venue:
Journal of Computer Science and Technology
Year:
2001

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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.