计算机工程与应用 ›› 2025, Vol. 61 ›› Issue (4): 349-357.DOI: 10.3778/j.issn.1002-8331.2403-0220

• 工程与应用 • 上一篇    下一篇

复杂网络视角下的中欧海铁运输网络重要节点识别研究

康欢欢,张玉召,石古乐   

  1. 兰州交通大学 交通运输学院,兰州 730070
  • 出版日期:2025-02-15 发布日期:2025-02-14

Research on Identification of Important Nodes in China-Europe Sea-Rail Transport Network from Perspective of Complex Network

KANG Huanhuan, ZHANG Yuzhao, SHI Guyue   

  1. School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China
  • Online:2025-02-15 Published:2025-02-14

摘要: 中欧海铁运输网络是“一带一路”建设的重要基础,研究中欧海铁运输网络的结构特性,确定该运输网络的重要节点对于保障国际产业链、供应链安全具有重大意义。建立中欧海铁运输网络拓扑模型并分析其拓扑特性,进而构建节点重要度评价体系,结合熵值法与主成分分析法计算节点重要度并进行排序,依据重要度排序结果删除节点,并分析网络各项参数的变化趋势。研究表明,中欧海铁运输网络具有无标度特征与小世界特性,依据节点重要度排序删除前40个节点后,网络的各项参数大幅度变化,节点重要度计算方法得到验证。结论显示,中欧海铁运输网络具有节点间联系密切、线路密集的特点,节点重要度计算不能仅依据度值等单一指标,将节点重要度排序前40的节点界定为该运输网络的重要节点。

关键词: 多式联运, 复杂网络, 节点重要度, 重要节点, 网络性能

Abstract: The China-Europe sea-rail transport network is an important foundation for the construction of the Belt and Road. Studying the structural characteristics of the China-Europe sea-rail transport network and determining the important nodes of the transport network are of great significance for ensuring the safety of the international industrial chain and supply chain. The topology model of China-Europe sea-rail transport network is established to analyze its topological characteristics, and the node importance evaluation system is constructed. The node importance is calculated and sorted by combining entropy method and principal component analysis method. The nodes are deleted according to the ranking results of importance, and the change trend of network parameters is analyzed. The research shows that the China-Europe sea-rail transport network has scale-free characteristics and small-world characteristics. After deleting the top 40 nodes according to the order of node importance, the parameters of the network change greatly, and the calculation method of node importance is verified. The conclusion shows that the China-Europe sea-rail transport network has the characteristics of close connection between nodes and dense lines. The calculation of node importance can not only be based on a single index such as degree value. The nodes with the top 40 node importance are defined as the important nodes of the transport network.

Key words: multimodal transport, complex network, node importance, key nodes, network performance