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arXiv physics/0612017physics.soc-ph
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定向还是非定向?一种新的社会经济网络关系方向性检验指标

Directed or Undirected? A New Index to Check for Directionality of Relations in Socio-Economic Networks

Giorgio Fagiolo

摘要:

本文提出了一个简单的程序来决定是否的实际观察到的邻接或权重矩阵,这是一个社会经济网络的图形的特点,是足够对称(分别,不对称),以证明一个无向(分别,定向)网络分析。我们引入一个新的指数,满足两个主要性质。首先,它可以应用于二进制或加权图。第二,一旦被适当地标准化,它就作为标准法线分布在所有可能的邻接/权重矩阵上。为了在实践中测试该指数,我们提出了一个应用程序,该应用程序采用了一组众所周知的社会和经济网络。

英文摘要:

This paper proposes a simple procedure to decide whether the empirically-observed adjacency or weights matrix, which characterizes the graph underlying a socio-economic network, is sufficiently symmetric (respectively, asymmetric) to justify an undirected (respectively, directed) network analysis. We introduce a new index that satisfies two main properties. First, it can be applied to both binary or weighted graphs. Second, once suitably standardized, it distributes as a standard normal over all possible adjacency/weights matrices. To test the index in practice, we present an application that employs a set of well-known empirically-observed social and economic networks.

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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