arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.13628cs.SI
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复杂网络中社区脆弱性的熵方法

The vulnerability of communities in complex network: An entropy approach

Tao Wen, Yong Deng

摘要:

测度复杂网络中社区的脆弱性已成为复杂系统研究中的一个重要课题。现有的脆弱性度量方法被提出来解决这些问题,然而,这些方法大多有自己的缺点和局限性。因此,本文提出了一种新的基于熵的方法来解决这些问题。该测度结合了各社区的内部因素和外部因素,对社区的脆弱性进行了定量描述。内部因素包括社区的复杂程度和社区内的边数,外部因素包括所选社区与其他社区的相似程度和社区外的节点数。从熵的角度考虑社区脆弱性为解决这一问题提供了新的思路。由于充分考虑了社区信息,可以得到更合理的脆弱性结果。为了说明该方法的性能和有效性,用一个实例网络和三个实际复杂网络与现有方法进行了比较,并用Sobol指标分析了权因子的敏感性。实验结果证明了该方法的合理性和优越性。

英文摘要:

Measuring the vulnerability of communities in complex network has become an important topic in the research of complex system. Numerous existing vulnerability measures have been proposed to solve such problems, however, most of these methods have their own shortcomings and limitations. Therefore, a new entropy-based approach is proposed in this paper to address such problems. This measure combines the internal factors and external factors for each communities which can give the quantitative description of vulnerability of community. The internal factors contain the complexity degree of community and the number of edges inside the community, and the external factors contain the similarity degree between chosen community and other communities and the number of nodes outside the community. Considering community vulnerability from the perspective of entropy provides a new solution to such problem. Due to sufficient consideration of community information, more reasonable vulnerability result can be obtained. In order to show the performance and effectiveness of this proposed method, one example network and three real-world complex network is used to compare with some exiting methods, and the sensitivity of weight factors is analysed by Sobol' indices. The experiment results demonstrate the reasonableness and superiority of this proposed method.

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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