A Social Network Group Consensus Decision-Making Method Based on DeGroot Model
Aiming at the consensus decision-making problem in social network environment,this paper proposes a group consensus decision-making method based on DeGroot model.First,accord-ing to the DeGroot model and the nature of group opinion leaders,the group's preference information about alternatives is obtained.Second,the opinion similarity between the decision-making groups is considered to measure the consensus level of the group's combined preferences,and then,a minimally adjusted optimization model is constructed,which in turn calculates the ranking of the alternatives.Fi-nally,the feasibility and effectiveness of the method are verified by an arithmetic example.
social trust networkopinion leaderDeGroot modelconsensus measureminimal adjustment
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