一种基于区间直觉梯形模糊数偏好的大群体决策冲突测度研究

针对决策偏好为区间直觉梯形模糊数的大群体决策冲突测度问题，首先给出了两个区间直觉梯形模糊数的距离，提出了群体成员冲突函数，基于该函数对大群体成员偏好进行聚类形成若干聚集，以此为基础提出了聚集冲突测度模型并集结为群体冲突测度模型，然后应用于大群体偏好集结。最后通过一个算例对模型进行了验证。该模型便于大群体意见的分析与协调，适用于群决策支持系统，在应急决策中具有实际应用价值。

Study for a Conflict Measure for Large Group Decision based on Interval-valued Intuitionistic Trapezoidal Fuzzy Number

Large group decision making is a difficult problem because it is hard to coordinate the conflict among multiple people. Conflict measure problems of large group are studied with every decision preferences expressed by interval-valued intuitionistic trapezoidal fuzzy number (IITFN). Firstly, the distance measurement between two IITFNs is given and conflict function among group members is proposed. Then, large group members are clustered. Afterwards, the cluster and group conflict measure models are proposed respectively and applied in the aggregating of large group preferences. Finally, a simulation example validates the model. This model deals with the analysis and coordination of large group decision, so it is applicable for group decision support system.