How modular structure can simplify tasks on networks: parameterizing graph optimization by fast local community detection.

How modular structure can simplify tasks on networks: parameterizing graph optimization by fast local community detection.
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DOI:
10.1098/rspa.2014.0224
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发表时间:
2014-10-08
期刊:
Proceedings. Mathematical, physical, and engineering sciences
影响因子:
--
通讯作者:
Jones NS
Jones NS
中科院分区:
其他
文献类型:
--
作者:
Bui-Xuan BM;Jones NS

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By considering the task of finding the shortest walk through a Network, we find an algorithm for which the run time is not as O(2n), with n being the number of nodes, but instead scales with the number of nodes in a coarsened network. This coarsened network has a number of nodes related to the number of dense regions in the original graph. Since we exploit a form of local community detection as a preprocessing, this work gives support to the project of developing heuristic algorithms for detecting dense regions in networks: preprocessing of this kind can accelerate optimization tasks on networks. Our work also suggests a class of empirical conjectures for how structural features of efficient networked systems might scale with system size.
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