arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.07447physics.soc-phcs.SImath.DSnlin.AOstat.ME
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网络进程的基序

Motifs for processes on networks

Alice C. Schwarze, Mason A. Porter

摘要:

对网络中的模体的研究可以帮助研究人员揭示生物学、社会学、经济学和许多其他领域的网络结构和功能之间的联系。对网络的实证研究已经将反馈环、前馈环和其他一些小结构确定为“基序”,它们在现实世界的网络中频繁出现,并可能通过各种机制对这些系统中的重要功能做出贡献。然而,这些机制是未知的许多这些图案。我们建议区分“结构基序”(即,图)和网络上的“进程基序”(我们将其定义为行走的结构化集合),并将进程基序视为网络上进程的构建块。使用稳态协方差和稳态相关性在一个多变量的Ornstein-Uhlenbeck过程的网络作为例子,我们证明了结构图案和过程图案之间的区别,使人们有可能获得定量的洞察机制,有助于网络上的动力系统的重要功能。

英文摘要:

The study of motifs in networks can help researchers uncover links between the structure and function of networks in biology, sociology, economics, and many other areas. Empirical studies of networks have identified feedback loops, feedforward loops, and several other small structures as "motifs" that occur frequently in real-world networks and may contribute by various mechanisms to important functions in these systems. However, these mechanisms are unknown for many of these motifs. We propose to distinguish between "structure motifs" (i.e., graphlets) in networks and "process motifs" (which we define as structured sets of walks) on networks and consider process motifs as building blocks of processes on networks. Using the steady-state covariances and steady-state correlations in a multivariate Ornstein--Uhlenbeck process on a network as examples, we demonstrate that the distinction between structure motifs and process motifs makes it possible to gain quantitative insights into mechanisms that contribute to important functions of dynamical systems on networks.

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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