A New Concept of a Similarity Measure for Intuitionistic Fuzzy Sets and Its Use in Group Decision Making

  • Eulalia Szmidt
  • Janusz Kacprzyk
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3558)


We propose a new measure of similarity for intuitionistic fuzzy sets, and use it to analyze the extent of agreement in a group of experts. The proposed measure takes into account two kinds of distances – one to an object to be compared, and one to its complement. We infer about the similarity of preferences on the basis of a difference between the two types of distances. We show that infering without taking into account a distance to a complement of an object can be misleading.


Similarity Measure Group Decision Fuzzy Preference Relation Propose Similarity Measure Fuzzy Preference Structure 
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 2005

Authors and Affiliations

  • Eulalia Szmidt
    • 1
  • Janusz Kacprzyk
    • 1
  1. 1.Systems Research InstitutePolish Academy of SciencesWarsawPoland

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