A Group Decision-Making Approach Based on DST and AHP for New Product Selection under Epistemic Uncertainty

Table 1

Scaling Method of Judgment Matrix.

Scaling value	Implication
1	The two indicators are equally important
3	The former indicator is slightly more important than the later.
5	The former indicator is obviously more important than the later.
7	The former indicator is much more important than the later.
9	The former indicator is extremely more important than the later.
2, 4, 6, 8	The median value is between two adjacent discriminates
reciprocal	If the matrix score is when the i-th indicator is compared with the j-th,; the matrix score is 1/ when the j-th indicator is compared with the i-th.