On multivariate binary data clustering and feature weighting

Nizar Bouguila

Computational Statistics & Data Analysis, 2010, vol. 54, issue 1, 120-134

Abstract: This paper presents an approach that partitions data sets of unlabeled binary vectors without a priori information about the number of clusters or the saliency of the features. The unsupervised binary feature selection problem is approached using finite mixture models of multivariate Bernoulli distributions. Using stochastic complexity, the proposed model determines simultaneously the number of clusters in a given data set composed of binary vectors and the saliency of the features used. We conduct different applications involving real data, document classification and images categorization to show the merits of the proposed approach.

Date: 2010
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