A Hierarchical Clustering Approach Based on Three-Dimensional Gray Relational Analysis for Clustering a Large Group of Decision Makers with Double Information

Jianjun Zhu (), Shitao Zhang (), Ye Chen () and Lili Zhang ()
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Jianjun Zhu: Nanjing University of Aeronautics and Astronautics
Shitao Zhang: Nanjing University of Aeronautics and Astronautics
Ye Chen: Nanjing University of Aeronautics and Astronautics
Lili Zhang: Nanjing University of Aeronautics and Astronautics

Group Decision and Negotiation, 2016, vol. 25, issue 2, No 5, 325-354

Abstract: Abstract Two types of information, collectively referred to as double information, are usually required in management decision-making. The first is preference information expressed in a judgment matrix. The second is reference information expressed in a multi-attribute decision matrix. In this paper, we investigate large-scale group clustering problems with double information in group decision-making. We first establish a novel three-dimensional gray correlation degree index, which integrates the alternative decision-making vector, index vector and alternative preference vector, to fully excavate the correlation between decision makers with double information. We then develop a new clustering procedure combining three-dimensional gray relational analysis and the concept of hierarchical clustering. Moreover, a model for determining clustering centers is established on the basis of the maximum gray correlation degree within each cluster and minimum gray correlation degree among clusters. A heuristic algorithm for the model to identify the core decision maker in each cluster is proposed. Finally, we illustrate the applications of the developed procedures with a practical case. The rationality of the proposed method is demonstrated by comparing results with results obtained using other methods, including the traditional gray clustering method and hierarchical clustering method with single information; i.e., preference information or reference information.

Keywords: Group decision; Double information; Gray correlation degree; Clustering center (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (6)

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DOI: 10.1007/s10726-015-9444-8

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