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

Table 12

The value of clustering validity index on SD3.

2	0.148379	0.300899	131.557269	0.570876
3	0.195663	0.142149	173.900551	0.599680
4	0.127512	0.142150	113.748947	0.557198
5	0.126561	0.738070	113.262975	0.589535