The Application of the Commparable Corpora in Chinese—English Cross—lingual Information Retrieval

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-paris 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.

The application of the comparable corpora in Chinese-English Cross-Lingual Information Retrieval

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. This research is supported by the National Natural Science Foundation of China (No.69983009). DU Lin, born in 1965, is an associate professor. He got the Ph.D. degree from Institute of Software, The Chinese Academy of Sciences in 1999, and got the B.S. and M.S. degrees from Chongqing University in 1987 and 1990 respectively. His current researches mainly focus on Chinese information retrieval and multilingual information retrieval. ZHANG Yibo was born in 1973. He received the B.S. and M.S. degrees from Central South University of Technology in 1994 and 1998 respectively. Now he is a Ph.D. candidate of Institute of Software, The Chinese Academy of Sciences His research interests include cross-language information retrieval. SUN Le, born in 1971, is an assistant professor. He received the B.S., M.S. and Ph.D. degrees from the Nanjing University of Science and Technology in 1991, 1995 and 1998 respectively. His current interests are machine assisted translation. SUN Yufang, born in 1947, is a professor. He received the M.S. degree from Institute of Software, The Chinese Academy of Sciences in 1983. His research interests include operating system and Chinese information processing.