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Ranking the Possible Alternatives in Flexible Querying: An Extended Possibilistic Approach

  • Guy de Tré
  • Tom Matthé
  • Koen Tourné
  • Bert Callens
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2869)

Abstract

An important facet of flexible querying and information retrieval is the ranking of the possible alternatives in the result. Adequate ranking information simplifies decision making and helps the user in finding faster the requested information. This paper deals with the construction of ranking methods, which are based on the use of extended possibilistic truth values. Extended possibilistic truth values are a flexible means to model query satisfaction, which additionally allow to deal with cases where some of the imposed query criteria are not applicable. Three alternative ranking approaches are presented and compared with each other based on their applicability in flexible database querying.

Keywords

Flexible database querying extended possibilistic truth values ranking functions 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Guy de Tré
    • 1
  • Tom Matthé
    • 1
  • Koen Tourné
    • 1
  • Bert Callens
    • 1
  1. 1.Computer Science Laboratory, Department of Telecommunications and Information ProcessingGhent UniversityGentBelgium

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