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Towards Top-k Query Answering in Description Logics: The Case of DL-Lite

  • Umberto Straccia
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4160)

Abstract

We address the problem of evaluating ranked top-k queries in description logics. The problem occurs whenever we allow queries such as “find cheap hotels close to the conference location” in which fuzzy predicates like cheap and close occur. We show how to efficiently compute the top-k answers of conjunctive queries with fuzzy predicates over DL-LITE like knowledge bases.

Keywords

Relational Database Description Logic Conjunctive Query Query Reformulation Fuzzy Predicate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Umberto Straccia
    • 1
  1. 1.ISTI – CNRPisaItaly

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