On the Distribution of Dissimilarity Increments
Fred, A. L. N.
On the Distribution of Dissimilarity Increments, Proc Iberian Conf. on Pattern Recognition and Image Analysis, Las Palmas de Gran Canaria, Spain, Vol. 6669, pp. 192 - 199, June, 2011.
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This paper proposes a statistical model for the dissimilarity changes (increments) between neighboring patterns which follow a 2-dimensional Gaussian distribution. We propose a novel clustering algorithm, using that statistical model, which automatically determines the appropriate number of clusters. We apply the algorithm to both synthetic and real data sets and compare it to a Gaussian mixture and to a previous algorithm which also used dissimilarity increments. Experimental results show that this new approach yields better results than the other two algorithms in most datasets.