基于层次变权的物流网络流量分配模型

Model of Flow Distribution in Logistics Network Based on Hierarchical Variable Weights

在物流网络中,以单因素或多因素常权综合度量线路长度为基础的货流量分配决策方法,难以体现因素值对因素权重的影响以及决策者的因素偏好。针对上述不足,本文分析物流网络要素及要素属性之间的相互关系,并对这些因素由底至顶进行分层,结合决策者因素偏好,研究各层因素权重构成与变权计算方法,建立物流网络层次变权模型,在此基础上给出物流网络路径选择和货流量分配算法。经算例分析,证实了模型和算法的科学性和有效性。

In logistics network, it is difficult to reflect the influence of factor weight and the factor preference of decisionmaker by the decision method for distribution of cargo flow line length based on a single or multi-factors integratedmeasurement. In view of the above deficiencies, this paper analyzes the relationship between logistics network elements andtheir attributes, and makes a comprehensive analysis of these factors. Combined with the preference of decision makers, thispaper studies the weight composition and variable weight calculation method of each layer of factors, establishes ahierarchical weight changing model of logistics network, and gives the route selection and cargo flow allocation algorithm oflogistics network on the basis of this model. The model and algorithm are proved to be scientific and effective by exampleanalysis.