Multi-criteria group decision-making method for green supplier selection based on distributed interval variables

Addressing the multi-criteria group decision making problem with interval attribute values and weights, this paper proposes a method based on distribution information. The selection of green suppliers is taken as an example for analysis. First, in case decision-making, quantitative evaluation attributes are imputed by decision-makers, relevant distributions constructed each attribute. Next, combined ranges values, random used to describe information represented overcome loss caused aggregation individual expert into We then propose distributed weighted arithmetic average (DIWAA) operator corresponding operation rules, which realizes fusion qualitative data judgment. Thus, proposed approach allows ensuring reasonable results also construct ranking alternatives comprehensive scores. Finally, we verify feasibility effectiveness task supplier through numerical experiments.