DUAL HESITANT FUZZY AGGREGATION OPERATORS
提出了双重犹豫模糊算术平均和几何平均两种聚合算子，讨论了其性质，并通过数值示例展示了它们在人力资源外包供应商选择中的应用。
Dual hesitant fuzzy sets (DHFSs) is a generalization of fuzzy sets (FSs) and it is typical of membership and non-membership degrees described by some discrete numerical. In this article we chiefly concerned with introducing the aggregation operators for aggregating dual hesitant fuzzy elements (DHFEs), including the dual hesitant fuzzy arithmetic mean and geometric mean. We laid emphasis on discussion of properties of newly introduced operators, and give a numerical example to describe the function of them. Finally, we used the proposed operators to select human resources outsourcing suppliers in a dual hesitant fuzzy environment.