Cascading Dynamics in Modular Networks

Details Cascading Dynamics in Modular Networks Cascading Dynamics in Modular Networks

2008-03-13

arxiv.org/abs/0803.1932v1

Phys. Rev. E 75, 036109 (2007)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevE.75.036109

In this paper we study a simple cascading process in a structured heterogeneous population, namely, a network composed of two loosely coupled communities. We demonstrate that under certain conditions the cascading dynamics in such a network has a two--tiered structure that characterizes activity spreading at different rates in the communities. We study the dynamics of the model using both simulations and an analytical approach based on annealed approximation, and obtain good agreement between the two. Our results suggest that network modularity might have implications in various applications, such as epidemiology and viral marketing.

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