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An approach to generate boolean query in question andanswering retrieval system

HE Jing   

  1. Computer Networks and Distributed Systems Laboratory, Peking Univ., Beijing 100871, China
  • Received:2006-03-29 Revised:1900-01-01 Online:2006-10-24 Published:2006-10-24
  • Contact: HE Jing

Abstract: A novel approach is proposed to generate Boolean query with the surface grammar information. The process is to generate the initial query first, and then iterate to adjust the query according to the retrieved result until a suitable query is acquired. The experiments on TREC2004/2005 QA TRACK data set show our approach improves the precision, coverage and redundancy greatly without increasing complexity much(iterate 2.5 times average).

Key words: boolean model , query generation, information retrieval, question and answering system

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