Table 2

Triangular fuzzy conversation scale

Linguistic scaleTriangular fuzzy conversation scaleTriangular fuzzy reciprocal scale
Equal importance(1, 1, 1)(1, 1, 1)
Weak importance(1, 3/2, 2)(1/2, 2/3, 1)
Strong importance(3/2, 2, 5/2)(2/5, 1/2, 2/3)
Very strong importance(2, 5/2, 3)(1/3, 2/5, 1/2)
Absolute strong importance(5/2, 3, 7/2)(2/7, 1/3, 2/5)
Sources: (Chang, 1996; Lee, 2010)

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