Fuzzy Cluster Validation Based on Fuzzy PCA-Guided Procedure

Authors:
K. Honda;A. Notsu;T. Matsui;H. Ichihashi
Affiliations:
Osaka Prefecture University, Japan;Osaka Prefecture University, Japan;Osaka Prefecture University, Japan;Osaka Prefecture University, Japan
Venue:
International Journal of Fuzzy System Applications
Year:
2011

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Abstract

Cluster validation is an important issue in fuzzy clustering research and many validity measures, most of which are motivated by intuitive justification considering geometrical features, have been developed. This paper proposes a new validation approach, which evaluates the validity degree of cluster partitions from the view point of the optimality of objective functions in FCM-type clustering. This approach makes it possible to evaluate the validity degree of robust cluster partitions, in which geometrical features are not available because of their possibilistic natures.