Empirical analysis of dependence between stations in Chinese railway network

被引:53
作者
Wang, Yong-Li [1 ]
Zhou, Tao [2 ,3 ,4 ]
Shi, Jian-Jun [1 ]
Wang, Jian [1 ]
He, Da-Ren [1 ]
机构
[1] Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225002, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Anhua 230026, Peoples R China
[3] Univ Sci & Technol China, Ctr Nonlinear Sci, Anhua 230026, Peoples R China
[4] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland
关键词
Bipartite networks; Resource-allocation method; Multiple-edge method; Chinese railway network; Dependence; MODEL;
D O I
10.1016/j.physa.2009.03.026
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A railway transportation system can be represented by a bipartite network consisting of trains and stations, where a train is connected to all stations where it stops. In this paper, motivated by the resource-allocation process taking place on networks, we design a method to project a Chinese train-station bipartite network into a weighted station network. A new metric is proposed to quantify the dependence between pairs of stations, which is shown to follow a shifted power-law distribution. In addition, we compare the resource-allocation method and the well-known multiple-edge method, and the results indicate that our proposed method is more reasonable. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:2949 / 2955
页数:7
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