关键词: DS/AHP方法, 群决策方法, 信息无损视角, 主体信息融合模型, Dempster组合规则, 知识矩阵

Abstract: There is a problem of loss decision information resulting from unsuitable reference points and unreasonable discount belief functions in the traditional DS/AHP method for group decision making. In order to solve above problem, a subjective information fusion model is constructed to integrate preferences of decision subjects on a specific attribute, in terms of mutually exclusive alternative groups induced and judged by decision subjects and relative preference information with seven-scale. After that, with reference to the transformation from knowledge matrix to Basic Probability Assignment(BPA) as well as information fusion thoughts by utilizing Dempster combination rule in traditional method, the proposed decision procedures are introduced to fuse evidence information on all of attributes. A simulation case shows the proposed method is scientific, applicable and feasible. The total degree of difference between its Pignistic probability and standard result is small.

Key words: DS/AHP method, group decision making method, information lossless perspective, subjective information fusion model, Dempster combination rule, knowledge matrix