The Impact of Triangular Inequality Violations on Medoid-Based Clustering

  • Saaid Baraty
  • Dan A. Simovici
  • Catalin Zara
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6804)


We evaluate the extent to which a dissimilarity space differs from a metric space by introducing the notion of metric point and metricity in a dissimilarity space. The effect of triangular inequality violations on medoid-based clustering of objects in a dissimilarity space is examined and the notion of rectifier is introduced to transform a dissimilarity space into a metric space.


dissimilarity metric triangular inequality medoid clustering 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Saaid Baraty
    • 1
  • Dan A. Simovici
    • 1
  • Catalin Zara
    • 1
  1. 1.University of Massachusetts BostonBostonUSA

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