关键词: 多供应商选择, 模糊偏好关系, 乘性一致性, 最优化模型, 一致性指数

Abstract: Supplier selection is an important issue in supply chain management, and essentially is a decision-making problem. In view of the supplier selection problem, an approach based on the optimization model is proposed to construct the multiplicative consistent Fuzzy Preference Relation（FPR）, and then a consistency index is defined to measure the degree of consistency for a FPR. Based on the multiplicative consistent FPR and the algorithm for adjusting multiplicative consistency, a method is investigated to obtain the priority weight vector of suppliers, which is not only used to adjust unacceptably multiplicative consistent FPR into an acceptably multiplicative one, but also can obtain the reasonable and reliable priority weight vector. In the end, the proposed method is applied to the problem of the dealers to select supplier.

Key words: supplier selection, fuzzy preference relation, multiplicative consistency, optimization model, consistency index