2010/12/31 by An Zeng, Linyuan Lu · 1 citation
Physics and Astronomy · Computer Science · #physics.soc-ph #cond-mat.dis-nn #cs.SI
paper · pdf · doi:10.1103/physreve.83.056123
published as Physical Review E 83, 056123 (2011) · 9 pages, 7 figures
arxiv created 2011/03/23 · arxiv updated 2011/05/31
Coarse graining model is a promising way to analyze and visualize large-scale networks. The coarse-grained networks are required to preserve the same statistical properties as well as the dynamic behaviors as the initial networks. Some methods have been proposed and found effective in undirected networks, while the study on coarse graining in directed networks lacks of consideration. In this paper, we proposed a Topology-aware Coarse Graining (TCG) method to coarse grain the directed networks. Performing the linear stability analysis of synchronization and numerical simulation of the Kuramoto model on four kinds of directed networks, including tree-like networks and variants of Barabási-Albert networks, Watts-Strogatz networks and Erdös-Rényi networks, we find our method can effectively preserve the network synchronizability.