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      Query expansion with terms selected using lexical cohesion analysis of documents

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      Author
      Vechtomova, O.
      Karamuftuoglu, M.
      Date
      2007-07
      Source Title
      Information Processing and Management
      Print ISSN
      0306-4573
      Publisher
      Elsevier Ltd
      Volume
      43
      Issue
      4
      Pages
      849 - 865
      Language
      English
      Type
      Article
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      Abstract
      We present new methods of query expansion using terms that form lexical cohesive links between the contexts of distinct query terms in documents (i.e., words surrounding the query terms in text). The link-forming terms (link-terms) and short snippets of text surrounding them are evaluated in both interactive and automatic query expansion (QE). We explore the effectiveness of snippets in providing context in interactive query expansion, compare query expansion from snippets vs. whole documents, and query expansion following snippet selection vs. full document relevance judgements. The evaluation, conducted on the HARD track data of TREC 2005, suggests that there are considerable advantages in using link-terms and their surrounding short text snippets in QE compared to terms selected from full-texts of documents. © 2006 Elsevier Ltd. All rights reserved.
      Keywords
      Interactive information retrieval
      Lexical cohesion
      Query expansion
      Relevance feedback
      Data reduction
      Feedback
      Interactive computer systems
      Query languages
      Text processing
      Word processing
      Permalink
      http://hdl.handle.net/11693/23429
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.ipm.2006.09.004
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