关键词: 多属性群决策, 区间数, 心态指标, 有序加权几何平均算子

Abstract: A new method was proposed for interval multi-attribute group decision-making, in which the weight information was incomplete, the attribute values and the preference information were in the form of interval numbers. The decision matrix with index of attitude was obtained through introduction of attitude indexes of decision makers. After solving the single object programming of minimizing the maximum total deviation between the subjective and objective preference, the weights of the attributes were determined. The group comprehensive attribute values of each alternative and the priorities were achieved by the Order Weighted Geometric Averaging operator(OWGA). A practical example proved that the method was feasible and reasonable.

Key words: multi-attribute group decision-making, interval number, index of attitude, order weighted geometric Averaging operator