title: A rough set approach for determining weights of decision makers in group decision making.
abstract: This study aims to present a novel approach for determining the weights of decision makers (DMs) based on rough group decision in multiple attribute group decision-making (MAGDM) problems. First, we construct a rough group decision matrix from all DMs' decision matrixes on the basis of rough set theory. After that, we derive a positive ideal solution (PIS) founded on the average matrix of rough group decision, and negative ideal solutions (NISs) founded on the lower and upper limit matrixes of rough group decision. Then, we obtain the weight of each group member and priority order of alternatives by using relative closeness method, which depends on the distances from each individual group member' decision to the PIS and NISs. Through comparisons with existing methods and an on-line business manager selection example, the proposed method show that it can provide more insights into the subjectivity and vagueness of DMs' evaluations and selections.
authors.affiliation: School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yang
authors.affiliation: School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, China.
authors.forename: Ping-An
authors.initials: PA
authors.lastname: Du
authors.affiliation: Southwest China Institute of Electronic Technology, Chengdu, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Southwest China Institute of Electronic Technology, Chengdu, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Liang
mesh_terms: D000465:Algorithms; D003657:Decision Making; D003661:Decision Support Techniques; D003662:Decision Theory; D006801:Humans; D011340:Problem Solving