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arXiv 1206.4094physics.soc-phcond-mat.dis-nncond-mat.stat-mechcs.SI
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最大熵随机游走统一了中心性测度

Maximal-entropy random walk unifies centrality measures

J. K. Ochab

摘要:

在本文中,不同的相似性矩阵之间的类比。这些矩阵,连接到路径枚举和随机游动,用于社区检测方法或计算复杂网络的中心性措施。重点是一些已知的中心性措施,继承了相似性矩阵建立的连接。这些措施是基于主特征向量的邻接矩阵,路径枚举,以及对平稳状态,随机矩阵或平均首次通过时间的随机游动。特别注意的是最大熵随机游走,这是一个非常独特的替代普通的随机游走在网络分析中使用。各种重要性的措施,定义与使用普通的随机游走和最大熵随机游走,数值上的一组基准图进行比较。结果表明,定义为两个随机游动的中心性措施组聚类成两个独立的家庭。特别是,最大熵随机游走的中心群,连接到特征向量中心和路径枚举,是强烈不同于所有其他措施,并产生很大程度上等效的结果。

英文摘要:

In this paper analogies between different (dis)similarity matrices are derived. These matrices, which are connected to path enumeration and random walks, are used in community detection methods or in computation of centrality measures for complex networks. The focus is on a number of known centrality measures, which inherit the connections established for similarity matrices. These measures are based on the principal eigenvector of the adjacency matrix, path enumeration, as well as on the stationary state, stochastic matrix or mean first-passage times of a random walk. Particular attention is paid to the maximal-entropy random walk, which serves as a very distinct alternative to the ordinary random walk used in network analysis. The various importance measures, defined both with the use of ordinary random walk and the maximal-entropy random walk, are compared numerically on a set of benchmark graphs. It is shown that groups of centrality measures defined with the two random walks cluster into two separate families. In particular, the group of centralities for the maximal-entropy random walk, connected to the eigenvector centrality and path enumeration, is strongly distinct from all the other measures and produces largely equivalent results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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