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Computationally effective algorithm to the epsilon -insensitive fuzzy clustering

Łęski J.

Systems Science

2002

Vol. 28, nr 3

31-50

The fuzzy c-means method is one of the most popular clustering methods based on minimization of a criterion function. However, one of the greatest disadvantages of this method is its sensitivity to the presence of noise and outliers in data. The epsilon -insensitive Fuzzy C-Means ( epsilon FCM) clustering algorithm is free of this disadvantage, but has a very high computational burden and requires a choice of the insensitivity parameter(s) epsilon In this paper, a new computationally effective epsilon -insensitive fuzzy c-means clustering algorithm with automatic adjustment of the insensitivity parameter(s) is introduced. Performance of the new clustering algorithm is experimentally verified using synthetic data with outliers and overlapped groups of heavy-tailed data.