Table 2

Numerical values of preferences in pairwise comparison (Zheng et al. 2012)

LinguisticScale of relative importanceTrapezoidal fuzzy numberLinguisticScale of relative importanceTrapezoidal fuzzy number
Absolute preference (8,8.5,9.5,10) Preference between 3 and 5 (3,3.5,4.5,5)
Preference between 7 and 9 (7,7.5,8.5,9) Low preference (2,2.5,3.5,4)
Very high preference (6,6.5,7.5,8) Preference between 1 and 3 (1,1.5,2.5,3)
Preference between 5 and 7 (5,5.5,6.5,7) Equal preference (1,1,1,1)
High preference (4,4.5,5.5,6)
LinguisticScale of relative importanceTrapezoidal fuzzy numberLinguisticScale of relative importanceTrapezoidal fuzzy number
Absolute preference (8,8.5,9.5,10) Preference between 3 and 5 (3,3.5,4.5,5)
Preference between 7 and 9 (7,7.5,8.5,9) Low preference (2,2.5,3.5,4)
Very high preference (6,6.5,7.5,8) Preference between 1 and 3 (1,1.5,2.5,3)
Preference between 5 and 7 (5,5.5,6.5,7) Equal preference (1,1,1,1)
High preference (4,4.5,5.5,6)
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