乳业安全供给有向加权网络节点重要度评估
Evaluation of Node Importance of Directed Weighted Network for Dairy Safety Supply
郝晓燕 1王永梅 1董超 1华连连1
作者信息
- 1. 内蒙古工业大学经济管理学院,内蒙古 呼和浩特 010051
- 折叠
摘要
由于我国乳业已经发展成为乳企、奶农、供应商、投资者、政府等相关利益者更加多元的产业系统,使得乳业安全供给已经形成了日益复杂的网络.为更加客观有效地识别乳业安全供给复杂网络中的关键节点,文章构建了一种有向加权网络节点重要度评价模型.该模型基于三角模糊数的方法确定网络边权,对节点的度值、吸引率及转移率三项指标分别进行计算,运用熵值法得出各个网络节点重要度排序.研究表明,乳业安全供给有向加权网络的关键节点重要度排序为乳品加工企业、政府、媒体、分销商,节点重要度分别为0.223、0.203、0.202、0.186.因此,只有乳品加工企业发挥乳品质量安全的第一责任人的作用,在政府规制有效,媒体监督有力,分销商产品供应合格的情况下,乳业安全供给网络才能稳定运行,乳业安全供给才能得到全面保障.文章对其他食品监管如何确定食品安全供给网络的重要节点提供一定的借鉴思路和决策依据.
Abstract
As China's dairy industry has developed into a more diversified industrial system for dairy enterprises,dairy farmers,suppliers,investors,government and other stakeholders,the safe supply of dairy industry has formed an increasingly complex network.In order to identify the key nodes in the complex network of dairy safety supply more objectively and effectively,this paper constructs a directed weighted network node importance evaluation model.The model determines the network edge weight based on the triangular fuzzy number method,calculates the degree value,attraction rate and transfer rate of nodes respectively,and obtains the importance ranking of each network node by entropy method.The research shows that the key node importance of the directed weighted network of dairy safety supply is ranked as dairy processing enterprises,government,media and distributors,and the node importance is 0.223,0.203,0.202 and 0.186 respectively.Therefore,only when the dairy processing enterprises play the role of the first person responsible for quality and safety,and the government regulation is effective,the media supervision is strong,and the distributor's product supply is qualified,can the dairy safety supply network operate stably and the dairy safety supply be fully guaranteed.This paper provides some reference ideas and decision-making basis for other food supervision on how to determine the important nodes of food safety supply network.
关键词
复杂网络/乳业安全/节点重要度/三角模糊数/熵值Key words
complex network/dairy safety/node importance/triangular fuzzy number/entropy引用本文复制引用
出版年
2024
NETL
NSTL
万方数据