Target Oriented Multiattribute Group Decision Making Approach and Application in Hydroelectric Project Evaluation

We consider a group decision problem which decision maker is target oriented and value of alternatives’ attributes is random variable. According to different type of targets, we propose a corresponding aggregating approach of group preference based on maximizing target expected utility. First, we translate the uncertainty of attributes’ value and decision makers’ targets into target oriented expected utility. Second, we obtain the preference of each decision maker by the utility function. Then, a linear approach is used to aggregate experts’ preference into a group target expected utility. After that, rank of alternatives is determined by their utility. Finally, an example shows the feasibility and effectiveness of the proposed approach.