Discriminative Approach to Semi-Supervised Clustering release_rev_03bd154d-4adc-4258-90cc-73447d9418b1

by MarekĀ“smieja MarekĀ“smieja

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Abstract

We consider a semi-supervised clustering problem, where selected pairs of data points are labeled by an expert as must-links or cannot-links. Basically, must-link constraints indicate that two points should be grouped together, while those with cannot-link constraints should be grouped separately. We present a clustering algorithm, which creates a partition consistent with pairwise constraints by maximizing the probability of correct assignments. Moreover, unlabeled data are used by maximizing their prediction confidence. Preliminary experimental studies show that the proposed method gives accurate results on sample data sets. Moreover, its kernelization allows to discover clustering patterns of arbitrary shapes.
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