Table 3.

Linguistic variables for fuzzy COPRAS, fuzzy MULTIMOORA, fuzzy BWM, and Shannon’s entropy methods

Linguistic variables for rating the suppliers		Linguistic variables for the weighting of each criterion				Interval values for linguistic variables
Linguistic variables	Triangular fuzzy number for fuzzy COPRAS and fuzzy MULTIMOORA	Linguistic variables (priority weights)	Triangular fuzzy numbers of the fuzzy BWM (Guo and Zhao 2017)	Linguistic variables (priority weights)	Triangular fuzzy number for fuzzy Shannon	Interval data at 0.3α
Very low (VL)	(0,0,0.25)	Equally importance (EI)	(1,1,1)	Unimportant (UI)	(0,0,0.2)	[0,0.17]
Low (L)	(0,0.25,0.5)	Weakly importance (WI)	(2/3,1,3/2)	Slightly important (SI)	(0,0.2,0.4)	[0.07,0.42]
Medium (M)	(0.25,0.5,0.75)	Fairly importance (FI)	(3/2,2,5/2)	Fairly important (FI)	(0.2,0.4,0.6)	[0.32,0.67]
High (H)	(0.5,0.75,0.1)	Very importance (VI)	(5/2,3,7/2)	Important (I)	(0.4,0.6,0.8)	[0.57,0.92]
Very high (VH)	(0.75,1,1)	Absolutely importance (AI)	(7/2,4,9/2)	Very important (VI)	(0.6,0.8,1)	[0.82,1]