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Applying machine translation to two-stage cross-language information retrieval

By Atsushi Fujii and Tetsuya Ishikawa


Abstract. Cross-language information retrieval (CLIR), where queries and documents are in di erent languages, needs a translation of queries and/or documents, so as to standardize both of them into a common representation. For this purpose, the use of machine translation is an e ective approach. However, computational cost is prohibitive in translating large-scale document collections. To resolve this problem, we proposeatwo-stage CLIR method. First, we translate a given query into the document language, and retrieve a limited number of foreign documents. Second, we machine translate only those documents into the user language, and re-rank them based on the translation result. We also show the e ectiveness of our method by way of experiments using Japanese queries and English technical documents.

Year: 2000
OAI identifier: oai:CiteSeerX.psu:
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