Bipolar Queries Using Various Interpretations of Logical Connectives

  • Sławomir Zadrożny
  • Janusz Kacprzyk
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4529)


In [1,2] we studied various concepts of bipolar queries (cf. Dubois and Prade [3]). We advocated the use of a fuzzified version of the original crisp definition by Lacroix and Lavency [4]. However, the general fuzzification proposed leaves open the choice of a representation of logical connectives and quantifiers. In the present paper we study the influence of the choice some representations that are popular in fuzzy logic on matching degrees of the tuples and their resulting ordering.


Fuzzy Logic Query Language Railway Station Logical Connective Implication Operator 
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Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • Sławomir Zadrożny
    • 1
    • 2
  • Janusz Kacprzyk
    • 1
  1. 1.Systems Research Institute, Polish Academy of Sciences, WarszawaPoland
  2. 2.WIT – Warsaw School of Information Technology, WarszawaPoland

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