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An Optimal Context for Information Retrieval

  • Rabeb Mbarek
  • Mohamed Tmar
  • Hawete Hattab
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8546)

Abstract

In general, document representation and ranking are dependent on context. In this work, we introduce the notion of optimal context, i.e. a context which gives the best ranking. We develop an algorithm to compute this optimal context and we show that it has an effect of query reformulation. Our approach gives substantial improvements in retrieval performance over known models.

Keywords

optimal context relevance feedback vector space model 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Rabeb Mbarek
    • 1
  • Mohamed Tmar
    • 1
  • Hawete Hattab
    • 2
  1. 1.Multimedia Information systems and Advanced Computing Laboratory, High Institute of Computer Science and MultimediaUniversity of SfaxSfaxTunisia
  2. 2.Umm Al-Qura UniversitySaudi Arabia

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