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

Table 14

Atanassov’s interval-valued intuitionistic fuzzy PIS and NIS.

	IVIF PIS	IVIF NIS
𝐶1	⟨[0.206,0.320],[0.477,0.571]⟩	⟨[0.511,0.675],[0.150,0.275]⟩
𝐶2	⟨[0.557,0.723],[0.114,0.214]⟩	⟨[0.168,0.279],[0.541,0.613]⟩
𝐶3	⟨[0.519,0.691],[0.133,0.241]⟩	⟨[0.377,0.528],[0.244,0.354]⟩
𝐶4	⟨[0.295,0.434],[0.375,0.497]⟩	⟨[0.223,0.351],[0.436,0.562]⟩
𝐶5	⟨[0.405,0.556],[0.203,0.351]⟩	⟨[0.129,0.222],[0.579,0.672]⟩
𝐶6	⟨[0.357,0.494],[0.149,0.389]⟩	⟨[0.180,0.283],[0.456,0.618]⟩