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arXiv 1802.05337cs.SIphysics.soc-ph
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大规模社交网络中的链路传输中心性

Link transmission centrality in large-scale social networks

Qian Zhang, Márton Karsai, Alessandro Vespignani

摘要:

了解网络中链接在传递信息中的重要性,可以提供一些方法来阻止或推迟正在发生的动态现象,如流行病的传播或信息的扩散。在这项工作中,我们提出了一个新的措施,随机扩散过程的基础上,\textit{transmission centrality},捕获的重要性,通过估计的平均数量的节点,他们在全球传播扩散过程中传递信息的链接。我们提出了一个简单的算法解决方案来计算传输中心性,并在非常大的网络中以较低的计算成本来近似它。最后,我们在三个大型经验社交网络中识别弱关系时应用了传输中心性,表明该度量在识别驱动社交网络中传播过程的链接方面优于其他中心性度量。

英文摘要:

Understanding the importance of links in transmitting information in a network can provide ways to hinder or postpone ongoing dynamical phenomena like the spreading of epidemic or the diffusion of information. In this work, we propose a new measure based on stochastic diffusion processes, the \textit{transmission centrality}, that captures the importance of links by estimating the average number of nodes to whom they transfer information during a global spreading diffusion process. We propose a simple algorithmic solution to compute transmission centrality and to approximate it in very large networks at low computational cost. Finally we apply transmission centrality in the identification of weak ties in three large empirical social networks, showing that this metric outperforms other centrality measures in identifying links that drive spreading processes in a social network.

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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