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Dynamics on networks: competition of temporal and topological correlations

机译:网络动力学:时间和拓扑相关性的竞争

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摘要

Links in many real-world networks activate and deactivate in correspondence to the sporadic interactions between the elements of the system. The activation patterns may be irregular or bursty and play an important role on the dynamics of processes taking place in the network. Information or disease spreading in networks are paradigmatic examples of this situation. Besides burstiness, several correlations may appear in the process of link activation: memory effects imply temporal correlations, but also the existence of communities in the network may mediate the activation patterns of internal an external links. Here we study the competition of topological and temporal correlations in link activation and how they affect the dynamics of systems running on the network. Interestingly, both types of correlations by separate have opposite effects: one (topological) delays the dynamics of processes on the network, while the other (temporal) accelerates it. When they occur together, our results show that the direction and intensity of the final outcome depends on the competition in a non trivial way.
机译:许多现实世界网络中的链接会根据系统元素之间的零星交互而激活和停用。激活模式可能是不规则的或突发的,并且在网络中发生的进程的动态过程中起着重要作用。网络中的信息或疾病传播就是这种情况的典型例子。除了突发性之外,在链接激活过程中可能还会出现一些相关性:记忆效应暗示了时间相关性,但是网络中社区的存在也可能介导内部外部链接的激活模式。在这里,我们研究链路激活中拓扑和时间相关性的竞争以及它们如何影响网络上运行的系统的动态。有趣的是,两种类型的相关性分别具有相反的作用:一种(拓扑性)延迟了网络上进程的动态,而另一种(时间性)则加速了它。当它们同时发生时,我们的结果表明,最终结果的方向和强度取决于竞争的程度,而这种竞争方式并非无关紧要。

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