引入权重因子的证据理论方法在超市选址中的应用
2017-12-11马丽娜
马丽娜


【摘 要】在超市规划过程中,确定其选址方案是影响其建设与发展的关键因素之一。近年来,超市选址方案的理论与实践研究受到学术界和企业界的高度重视。研究分析表明影响超市选址的因素很多,特别在供应链管理的大环境下,各影响因素之间相互制约、相互关联。本文基于超市选址问题,设计了一系列影响超市选址的指标因素,基于这些指标因素,设计了一种引入权重因子的证据理论超市选址决策方法,通过构建模型,并设计模型求解算法。结合案例对该方法进行验证,为超市选址决策提供参考依据。
【关键词】超市选址;证据理论;评价指标;权重因子
The location selection method for supermarket using evidence fusion method with weighting factor
MA Li-na
(Department of Information, Xingzhi College of Xi'an University of Finance and Economics, Xian 710038,China)
【Abstract】During the construction of supermarket, the site selection is one important procedure. Recently, the theory and application of supermarket site selection have been highly emphasized. Many researches indicate that many factors can influence its site selection, especially when the supply chain is complicated and their relationship is a mode of double-associative and restrictive. In this paper, indicators of supermarket site selection are studied. A new model based on weighting factor evidence theory to determine the supermarket site selection is proposed. The simulation results show that it is an effective model and can be used for application.
【Key words】Location selection; Evidence theory; Evaluation index; Weighting factor
0 引言
在超市选址问题中,要综合考虑各种必要因素,计算结果往往受人为因素影响较大,而且会出现用于决策的信息不完备等情况。Dempster-Shafer证据理论作为一种不确定推理方法,既能处理随机性导致的不确定性,又能处理不具体导致的不确定性,并且提供了简单的信息组合机制。基于此,本文提出了一种基于证据理论的超市选址新方法。针对选址问题中可供决策的信息的多属性和多源性,从两个层面进行融合决策。首先融合多个指标,得到各专家的综合評价,再融合各专家的意见。在对各指标融合时,由于某备选方案在不同指标属性上的等级有较大差别。而传统的Dempster-Shafer(D-S)组合规则对高冲突证据合成时, 很可能得出违背常理的结论,为此,本文在证据组合前引入了权重因子,用于区分各指标对决策的影响力。……
