An Approach for Achieving Consistency for Symmetric Trapezoidal Interval Type-2 Fuzzy Sets

Table 2

IT2 FSs and their ranking value [10, 38, 39, 42–45].

linguistic terms	IT2 FSs
	((0,0,0,0;0,0),(0,0,0,0;0,0))	0	0	0
	((0,0,0,0.1;1,1),(0,0,0,0.05;0.9,0.9))	0.0188	0	0
	((0,0.1,0.1,0.3;1,1),(0.05,0.1,0.1,0.2;0.9,0.9))	0.1306	0	0
	((0.1,0.3,0.3,0.5;1,1),(0.2,0.3,0.3,0.4;0.9,0.9))	0.375	0.3220	0
	((0.3,0.5,0.5,0.7;1,1),(0.4,0.5,0.5,0.6;0.9,0.9))	0.725	0.6848	0.6462
	((0.5,0.7,0.7,0.9;1,1),(0.6,0.7,0.7,0.8;0.9,0.9))	1.155	1.1188	1.083
	((0.7,0.9,0.9,1;1,1),(0.8,0.9,0.9,0.95;0.9,0.9))	1.586	1.565	1.544
	((0.9,1,1,1;1,1),(0.95,1,1,1;0.9,0.9))	1.864	1.861	1.857
	((1,1,1,1;1,1),(1,1,1,1;1,1))	2	2	2