A Self-Adaptive Fuzzy c-Means Algorithm for Determining the Optimal Number of Clusters

Algorithm 2

SAFCM.

Input: , , and

Output: , ,

for to do

 ;                 The current iteration.

 ;         The first kn cluster centroids of V.

 ;

 ;

 while do

  Update ;

  Update ;

  Update ;

  ;

 ;

 );

 ;

;  The best value of clustering validity index.

);

;