基于贡献矩阵的供应链网络节点重要度评估方法

Contribution Matrix Based Importance Assessment Method for Supply Chain Network Nodes

摘要: 信息化社会中网络无处不在，大多数供应链系统具有网络结构。因此，从网络角度出发，分析和研究供应链中的相关问题更符合实际需要。已有研究成果多数考虑的是无向网络，针对有向加权网络，论文通过改进相对影响权重、交叉强度等定义，给出了节点重要度评判的新参量。进一步，本文结合相应参量构造出更加客观合理的重要度贡献矩阵，并提出一种符合有向加权网络节点重要性评判的新指标。通过对网络节点重要性的算例分析，验证了本文评估方法的有效性和可行性。另外，本文的评估方法也同样适用于加权网络与无向网络。

Abstract: Networks are ubiquitous in the information society, and most supply chain systems have a network structure. Therefore, it is more in line with the practical needs to analyze and study the related problems in supply chain from the network perspective. Most of the existing research results consider the undirected network, for the directed weighted network, this paper gives a new parameter to judge the importance of nodes by improving the definitions of relative influence weights and cross strengths, etc. Further, the paper combines the corresponding parameters to construct a more objective and reasonable importance judgement. Further, the paper constructs a more objective and reasonable importance contribution matrix by combining the corresponding parameters, and proposes a node importance judgement index which is more in line with that of the directed weighted network. The effectiveness and feasibility of this paper’s assessment method is verified through the example analysis of node enterprise importance. In addition, the assessment method of this paper is also applicable to weighted networks and undirected networks.