Chinese OOV translation and post-translation query expansion in Chinese-English cross-language information retrieval

Zhang, Y, Vines, P and Zobel, J 2005, 'Chinese OOV translation and post-translation query expansion in Chinese-English cross-language information retrieval', ACM Transactions on Asian Languange Information Retrieval, vol. 4, no. 2, pp. 57-77.


Document type: Journal Article
Collection: Journal Articles

Title Chinese OOV translation and post-translation query expansion in Chinese-English cross-language information retrieval
Author(s) Zhang, Y
Vines, P
Zobel, J
Year 2005
Journal name ACM Transactions on Asian Languange Information Retrieval
Volume number 4
Issue number 2
Start page 57
End page 77
Total pages 20
Publisher Association for Computing Machinery
Abstract Cross-lingual information retrieval allows users to query mixed-language collections or to probe for documents written in an unfamiliar language. A major difficulty for cross-lingual information retrieval is the detection and translation of out-of-vocabulary (OOV) terms; for OOV terms in Chinese, another difficulty is segmentation. At NTCIR-4, we explored methods for translation and disambiguation for OOV terms when using a Chinese query on an English collection. We have developed a new segmentation-free technique for automatic translation of Chinese OOV terms using the web. We have also investigated the effects of distance factor and window size when using a hidden Markov model to provide disambiguation. Our experiments show these methods significantly improve effectiveness; in conjunction with our post-translation query expansion technique, effectiveness approaches that of monolingual retrieval.
Subject Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
Copyright notice © 2005 ACM
ISSN 1530-0226
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