WASET

	%0 Journal Article
	%A Kuo-Lung Wu
	%D 2010
	%J International Journal of Mathematical and Computational Sciences
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 41, 2010
	%T Parameter Selections of Fuzzy C-Means Based on Robust Analysis
	%U https://publications.waset.org/pdf/13160
	%V 41
	%X The weighting exponent m is called the fuzzifier that
can have influence on the clustering performance of fuzzy c-means
(FCM) and m├Ä[1.5,2.5] is suggested by Pal and Bezdek [13]. In this
paper, we will discuss the robust properties of FCM and show that the
parameter m will have influence on the robustness of FCM. According
to our analysis, we find that a large m value will make FCM more
robust to noise and outliers. However, if m is larger than the theoretical
upper bound proposed by Yu et al. [14], the sample mean will become
the unique optimizer. Here, we suggest to implement the FCM
algorithm with m├Ä[1.5,4] under the restriction when m is smaller
than the theoretical upper bound.
	%P 558 - 561