Research Article

An Extension of the Fuzzy Possibilistic Clustering Algorithm Using Type-2 Fuzzy Logic Techniques

Table 3

Results of the IT2XB validation index for WDBC dataset clustering using IT2FPCM and IT2FCM algorithm with = [1.5, 2] and = [1.5, 2.5] as parameters.

Index validation IT2XB
DatasetClustersIT2FPCMIT2FCM
DefuzzLowerUpperDefuzzLowerUpper

WDBC20.060480.051000.069950.061370.051150.07159
30.062200.050610.073780.065860.052830.07889
40.179670.134650.224700.182090.135020.22915
50.182470.134530.230420.185330.134940.23572
60.170790.121000.220590.175060.122440.22768
70.229810.155690.303930.232420.155470.30937
80.195470.135850.255090.198440.136010.26088
90.172470.120250.224680.175630.120980.23028
100.188930.125040.252820.199630.131710.26754