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

Table 9

Ideal matrix.

	Company 1	Company 2	Company 3	Company 4
	𝑆1	𝑆2	𝑆3	𝑆4
𝐶1	⟨[0.291,0.394],[0.429,0.482]⟩	⟨[0.737,0.843],[0.066,0.119]⟩	⟨[0.385,0.490],[0.338,0.394]⟩	⟨[0.755,0.859],[0.050,0.100]⟩
𝐶2	⟨[0.197,0.298],[0.528,0.579]⟩	⟨[0.709,0.814],[0.066,0.119]⟩	⟨[0.665,0.779],[0.087,0.150]⟩	⟨[0.505,0.643],[0.187,0.274]⟩
𝐶3	⟨[0.462,0.576],[0.220,0.294]⟩	⟨[0.634,0.755],[0.097,0.165]⟩	⟨[0.564,0.678],[0.127,0.198]⟩	⟨[0.606,0.729],[0.127,0.198]⟩
𝐶4	⟨[0.482,0.613],[0.256,0.331]⟩	⟨[0.588,0.692],[0.141,0.200]⟩	⟨[0.540,0.643],[0.197,0.251]⟩	⟨[0.402,0.517],[0.263,0.341]⟩
𝐶5	⟨[0.551,0.659],[0.158,0.221]⟩	⟨[0.557,0.659],[0.185,0.238]⟩	⟨[0.197,0.298],[0.528,0.579]⟩	⟨[0.648,0.766],[0.091,0.157]⟩
𝐶6	⟨[0.602,0.709],[0.114,0.179]⟩	⟨[0.291,0.394],[0.443,0.495]⟩	⟨[0.413,0.551],[0.305,0.387]⟩	⟨[0.532,0.643],[0.168,0.234]⟩