Group Decision Making Process for Supplier Selection with TOPSIS Method under Interval-Valued Intuitionistic Fuzzy Numbers

Table 3

Importance weight as linguistic variables.

Linguistic terms	IVIF numbers
Extremely important (EI)	⟨[1.00,1.00],[0.00,0.00]⟩
Very important (VI)	⟨[0.80,0.90],[0.05,0.10]⟩
Important (I)	⟨[0.65,0.75],[0.10,0.20]⟩
Medium (M)	⟨[0.45,0.55],[0.35,0.45]⟩
Unimportant (U)	⟨[0.25,0.35],[0.55,0.65]⟩
Very unimportant (VU)	⟨[0.00,0.10],[0.80,0.90]⟩