We describe a mechanism for the generation of lexical paraphrases of queries posed to an Internet resource. These paraphrases are generated using WordNet and part-of-speech information to propose synonyms for the content words in the queries. Statistical information, obtained from a corpus, is then used to rank the paraphrases. We evaluated our mechanism using 404 queries whose answers reside in the LA Times subset of the TREC-9 corpus. There was a 14% improvement in performance when paraphrases were used for document retrieval.
Lexical Query Paraphrasing for Document Retrieval
Ingrid Zukerman,Bhavani Raskutti
Published 2002 in International Conference on Computational Linguistics
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2002
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International Conference on Computational Linguistics
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2002-08-24
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Computer Science
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