arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.06543cs.DScs.DMcs.IRcs.SI
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计算链接流中的介数中心性

Computing Betweenness Centrality in Link Streams

Frédéric Simard, Clémence Magnien, Matthieu Latapy

AI总结:

本文针对链接流中介数中心性因连续时间导致的计算难题,提出了首批在多项式时间与空间内完成计算的算法及伴随算法,并通过典型示例和实现进行了验证。

摘要:

介数中心性是图分析中最重要的概念之一。它最近被扩展到链接流,这是一种链接随时间到达的图推广。然而,其计算引发了非平凡的问题,特别是因为时间被视为连续的。我们在此提供了计算这种广义介数中心性的首批算法,以及几个具有自身价值的伴随算法。它们在多项式时间和空间内工作,我们在典型示例上对它们进行了说明,并提供了实现。

英文摘要:

Betweeness centrality is one of the most important concepts in graph analysis. It was recently extended to link streams, a graph generalization where links arrive over time. However, its computation raises non-trivial issues, due in particular to the fact that time is considered as continuous. We provide here the first algorithms to compute this generalized betweenness centrality, as well as several companion algorithms that have their own interest. They work in polynomial time and space, we illustrate them on typical examples, and we provide an implementation.

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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