基于复杂网络的海运航线网络连通性分析

发布时间：2018-04-09 16:39

本文选题：复杂网络　切入点：海运航线网络　出处：《大连海事大学学报》2017年01期

【摘要】：为揭示海运航线网络的特征,评估港口失效对网络连通性的影响,基于复杂网络的相关理论,对海运航线网络的结构特征进行分析,并考察了港口在不同失效模式下网络连通性的变化.研究结果表明,海运航线网络同时具有较小的平均路径长度和较大的集聚系数,具有小世界效应,度分布与幂指数分布拟合程度较好而具有无标度特征;在节点随机失效下网络的抗毁性较强,而在选择失效下,网络的连通性较差;少数枢纽港口对海运航线网络的连通性起着关键的作用,应当切实保障这类港口的正常、高效运行,同时需加强枢纽港口与普通港口之间的连接,完善网络结构.
[Abstract]:In order to reveal the characteristics of seaborne route network and evaluate the influence of port failure on network connectivity, the structural characteristics of seaborne route network are analyzed based on the theory of complex network.The change of network connectivity in different failure modes is investigated.The results show that the seaborne route network has smaller average path length and larger agglomeration coefficient and has small world effect. The degree distribution fits well with power exponent distribution and has scale-free characteristics.The network has strong survivability under the random failure of nodes, but poor connectivity under the selected failure. A few hub ports play a key role in the connectivity of the maritime route network, and the normal of these ports should be ensured.Efficient operation, at the same time need to strengthen the junction between the hub port and ordinary ports, improve the network structure.
【作者单位】：上海海事大学科学研究院;
【基金】：国家自然科学基金青年项目(71101088);国家自然科学基金面上项目(71471109) 上海市曙光计划项目(13SG48) 上海市教委科研创新项目(14YZ100) 交通部应用基础研究项目(2015329810260) 教育部博士点基金项目(20113121120002) 2016年上海海事大学研究生创新基金(2016ycx058)
【分类号】：U697

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