Affiliations: [a] School of Internet of Things Engineering, Jiangnan University, Wuxi, Jiangsu Province, China
| [b] School of Business, Jiangnan University, Wuxi, Jiangsu Province, China
Correspondence:
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Corresponding author. Yuhong Wang, School of Business, Jiangnan University, Wuxi, Jiangsu Province 214122, China. E-mail: [email protected].
Abstract: In view of the present situation that most aggregation methods of fuzzy preference information are extended or mixed by classical aggregation operators, which leads to the aggregation accuracy is not high. The purpose of this paper is to develop a novel method for spatial aggregation of fuzzy preference information. Thus we map the fuzzy preference information to a set of three-dimensional coordinate and construct the spatial aggregation model based on Steiner-Weber point. Then, the plant growth simulation algorithm (PGSA) algorithm is used to find the spatial aggregation point. According to the comparison and analysis of the numerical example, the aggregation matrix established by our method is closer to the group preference matrices. Therefore, the optimal aggregation point obtained by using the optimal aggregation method based on spatial Steiner-Weber point can best represent the comprehensive opinion of the decision makers.
