Case Studies and Evaluation of Green Mining considering Uncertainty Factors and Multiple Indicator Weights

Table 3

Importance between criteria and criteria (modified from Jiang et al. [31]).

Definition	Numerical value
, elements are “equally important”	1
element is “slightly more important” than element	3
element is “obviously more important” than element	5
element is “intensely more important” than element	7
a element is “extremely more important” than element	9
element is “slightly less important” than element	1/3
element is “obviously less important” than element	1/5
element is “intensely less important” than element	1/7
element is “extremely less important” than element	1/9
Importance degree is between the previous two values	2, 4, 6, 8, 1/2, 1/4, 1/6, 1/8