A computation method of group consensus degree based on the Linguistic Power Average operator

With respect to the computation problem of group consensus degree in multi-criteria group decision making problems with linguistic assessment information, in this paper, a LPA operator (Linguistic Power Average) is proposed to aggregate linguistic assessment information based on the two-tuple linguistic representation developed in recent years and PA operator (Power Average), and then, the steps are given to computer group consensus degree according to LPA operator. Finally, a numerical example is given to illustrate the method proposed in this paper.