Flow stability for dynamic community detection.
Flow stability for dynamic community detection.
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DOI:
10.1126/sciadv.abj3063
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发表时间:
2022-05-13
期刊:
影响因子:
13.6
通讯作者:
Lambiotte, Renaud
中科院分区:
文献类型:
--
作者:
Bovet, Alexandre;Delvenne, Jean-Charles;Lambiotte, Renaud
Many systems exhibit complex temporal dynamics due to the presence of different processes taking place simultaneously. An important task in these 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. The flow stability method extracts simplified descriptions of complex time-resolved datasets at different dynamical scales.
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