Deriving Weights from Interval Multiplicative Preference Relations in Group Decision Making

Zeshui Xu () and Xiaoqiang Cai ()
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Zeshui Xu: PLA University of Science and Technology
Xiaoqiang Cai: The Chinese University of Hong Kong

Group Decision and Negotiation, 2014, vol. 23, issue 4, No 3, 695-713

Abstract: Abstract In this article, we investigate group decision making problems with interval multiplicative preference relations (including complete interval multiplicative preference relations and incomplete interval multiplicative preference relations). On the basis of the number of judgments and the consistency degree of each interval multiplicative preference relation, we first give a combined weighting method to derive the weights of decision makers. Then, we establish two linear programming models to derive the weight intervals of alternatives from all individual consistent interval multiplicative preference relations and utilize the continuous ordered weighted averaging operator or the continuous ordered weighted geometric operator to aggregate all the values in each weight interval. In addition, we establish a more general model to check the consistency of all individual interval multiplicative preference relations. In the cases where the optimal objective value of the model is not zero, we can get the optimal weights of alternatives directly, and then utilize these optimal weights and the optimal deviation values derived from the model to construct consistent interval multiplicative preference relations. Furthermore, we discuss some special cases of the established models and illustrate our models with a practical example.

Keywords: Group decision making; Interval multiplicative preference relation; Linear programming model; Weight interval; Continuous ordered weighted averaging operator; Continuous ordered weighted geometric operator; Consistency (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10726-012-9315-5

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