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arXiv 2101.06131physics.soc-phcs.SImath.DSphysics.data-an
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动态社区检测的流稳定性

Flow stability for dynamic community detection

Alexandre Bovet, Jean-Charles Delvenne, Renaud Lambiotte

摘要:

许多系统表现出复杂的时间动态,由于同时发生的不同过程的存在。在这样的系统中,一个重要的任务是提取一个简化的视图,其时间依赖的相互作用网络。时间网络中的社区检测通常依赖于时间窗口上的聚合或考虑不同平稳时期的序列。对于基于动力学的方法,试图推广静态网络方法也面临着根本的困难,即动态的稳态并不总是存在。在这里,我们推导出一种方法的基础上演变的时间网络上的动态过程。我们的方法允许动态,不达到稳定状态,并揭示了两组社区为一个给定的时间间隔,占排序的边缘在向前和向后的时间。我们表明,我们的方法提供了一种自然的方式来解开不同的动力学尺度存在于一个系统与合成和现实世界的例子。

英文摘要:

Many systems exhibit complex temporal dynamics due to the presence of different processes taking place simultaneously. An important task in such systems is to extract a simplified view of their time-dependent network of interactions. Community detection in temporal networks usually relies on aggregation over time windows or consider sequences of different stationary epochs. For dynamics-based methods, attempts to generalize static-network methodologies also face the fundamental difficulty that a stationary state of the dynamics does not always exist. Here, we derive a method based on a dynamical process evolving on the temporal network. Our method allows dynamics that do not reach a steady state and uncovers two sets of communities for a given time interval that accounts for the ordering of edges in forward and backward time. We show that our method provides a natural way to disentangle the different dynamical scales present in a system with synthetic and real-world examples.

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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