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

Table 23

Results of the IT2XB validation index to Cover type dataset clustering using IT2FPCM and IT2FCM algorithm with = [1.5, 2.5] and = [1.5, 2.5] as parameters.

Index of validation IT2XB
Dataset	Clusters	IT2FPCM			IT2FCM
		Defuzz	Lower	Upper	Defuzz	Lower	Upper
Cover Type	2	0.19894	0.14137	0.25651	0.19894	0.14137	0.25651
	3	0.19557	0.11641	0.27474	0.19557	0.11641	0.27474
	4	0.33846	0.19325	0.48366	0.33845	0.19325	0.48366
	5	0.24190	0.11492	0.36887	0.24189	0.11492	0.36886
	6	0.24645	0.10625	0.38665	0.24628	0.10618	0.38639
	7	0.29318	0.12373	0.46263	0.29165	0.12304	0.46026
	8	0.34262	0.14107	0.54418	0.33522	0.13744	0.53301
	9	0.28467	0.10933	0.46002	0.28741	0.11148	0.46335