Industrial Engineering and Management Systems

Korean Institute of Industrial Engineers (대한산업공학회)
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Validation Measures of Bicluster Solutions

  • Lee, Young-Rok (Department of Industrial and Management Engineering Pohang University of Science and Technology) ;
  • Lee, Jeong-Hwa (Department of Industrial and Management Engineering Pohang University of Science and Technology) ;
  • Jun, Chi-Hyuck (Department of Industrial and Management Engineering Pohang University of Science and Technology)
  • Received : 2009.05.04
  • Accepted : 2009.05.28
  • Published : 2009.06.30
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Abstract

Biclustering is a method to extract subsets of objects and features from a dataset which are characterized in some way. In contrast to traditional clustering algorithms which group objects similar in a whole feature set, biclustering methods find groups of objects which have similar values or patterns in some features. Both in clustering and biclustering, validating how much the result is informative or reliable is a very important task. Whereas validation methods of cluster solutions have been studied actively, there are only few measures to validate bicluster solutions. Furthermore, the existing validation methods of bicluster solutions have some critical problems to be used in general cases. In this paper, we review several well-known validation measures for cluster and bicluster solutions and discuss their limitations. Then, we propose several improved validation indices as modified versions of existing ones.

Keywords

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