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

Table 1

Results of the IT2MPE-DMFP validation index for the WDBC dataset clustering using IT2FPCM and IT2FCM algorithm using = [1.5, 2] and = [1.5, 2.5] as the parameters.

Index of validation IT2MPE-DMFP
Dataset	Clusters	IT2FPCM			IT2FCM
		Defuzz	Lower	Upper	Defuzz	Lower	Upper
WDBC	2	0.59497	0.60327	0.58667	0.59374	0.60213	0.58536
	3	1.38830	1.37432	1.40228	1.36790	1.35511	1.38069
	4	1.57493	1.49703	1.65282	1.57353	1.49646	1.65060
	5	2.02818	1.90438	2.15198	2.02736	1.90424	2.15048
	6	2.68035	2.48420	2.87650	2.66823	2.47214	2.86432
	7	2.85760	2.62283	3.09237	2.84878	2.61268	3.08488
	8	3.81363	3.46430	4.16295	3.80316	3.45317	4.15314
	9	4.63064	4.18376	5.07752	4.61201	4.16408	5.05994
	10	4.80744	4.30470	5.31017	4.75902	4.25342	5.26462