The method studied in this paper is one of many decision-making methods

Abstract

The decision-making methods were widely used in complex system involving human subjective factors. In this research, a group feedback mechanism was constructed based on grey similarity degree, and the divergence degree indicator was established based on grey similarity degree to determine divergence degree between individual decision-making vectors and mean vector. In group feedback mechanism, an improved scale model was constructed based on Weber-Fechner law to increase closeness between scale model and subjective judgments for analytic hierarchy process method. And the validation method for scale model was proposed to verify the advantage of the scale model. The proposed method can more truly reflect the decision makers’ decision-making intention and improve the accuracy of decision-making results for complex system.