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Endowing Semantic Query Languages with Advanced Relaxation Capabilities

  • Géraud Fokou
  • Stéphane Jean
  • Allel Hadjali
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8502)

Abstract

Most of studies on relaxing Semantic Web Database (\(\mathcal{S}\mathcal{W}\mathcal{D}\mathcal{B}\)) queries focus on developing new relaxation techniques or on optimizing the top-k query processing. However, only few works have been conducted to provide a fine and declarative control of query relaxation using an \(\mathcal{S}\mathcal{W}\mathcal{D}\mathcal{B}\) query language. In this paper we first define a set of requirements for an \(\mathcal{S}\mathcal{W}\mathcal{D}\mathcal{B}\) cooperative query language(\(\mathcal{C}\mathcal{Q}\mathcal{L}\)). Then, based on these requirements, we propose an extension of query language with a new clause to use and combine the relaxation operators we introduce. A similarity function is associated with these operators to rank the alternative answers retrieved.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Géraud Fokou
    • 1
  • Stéphane Jean
    • 1
  • Allel Hadjali
    • 1
  1. 1.LIAS/ENSMA-University of PoitiersFuturoscope CedexFrance

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