## Aggregating fuzzy opinions in the group decision-making environment.(English)Zbl 1008.68125

Summary: This paper presents a new method for dealing with fuzzy opinion aggregation in group decision-making problems. The proposed method has the following advantages: (1) The experts’ estimates do not necessarily have a common intersection at $$\alpha$$-level cuts, where $$\alpha\in(0, 1]$$. (2) It can perform fuzzy opinion aggregation in a more efficient manner. (3) It does not need to use the Delphi method to adjust trapezoidal fuzzy numbers given by experts.

### MSC:

 68T20 Problem solving in the context of artificial intelligence (heuristics, search strategies, etc.) 91B14 Social choice 03E72 Theory of fuzzy sets, etc.

### Keywords:

decision-making problems
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