Constant communities in complex networks.
Constant communities in complex networks.
复制标题
复杂网络中的恒定社区。
DOI:
10.1038/srep01825
复制
发表时间:
2013
影响因子:
4.6
通讯作者:
Mukherjee A
中科院分区:
文献类型:
--
作者:
Chakraborty T;Srinivasan S;Ganguly N;Bhowmick S;Mukherjee A
Identifying community structure is a fundamental problem in network analysis. Most community detection algorithms are based on optimizing a combinatorial parameter, for example modularity. This optimization is generally NP-hard, thus merely changing the vertex order can alter their assignments to the community. However, there has been less study on how vertex ordering influences the results of the community detection algorithms. Here we identify and study the properties of invariant groups of vertices (constant communities) whose assignment to communities are, quite remarkably, not affected by vertex ordering. The percentage of constant communities can vary across different applications and based on empirical results we propose metrics to evaluate these communities. Using constant communities as a pre-processing step, one can significantly reduce the variation of the results. Finally, we present a case study on phoneme network and illustrate that constant communities, quite strikingly, form the core functional units of the larger communities.
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影响因子:
4.6
作者:
Lancichinetti, Andrea;Fortunato, Santo
通讯作者:
Fortunato, Santo
影响因子:
--
作者:
Leskovec, Jure;Lang, Kevin J.;Mahoney, Michael W.
通讯作者:
Mahoney, Michael W.
影响因子:
0.4
作者:
Gleiser, PM;Danon, L
通讯作者:
Danon, L
影响因子:
2.3
作者:
Lusseau, D;Schneider, K;Dawson, SM
通讯作者:
Dawson, SM
DOI:
10.1073/pnas.122653799
发表时间:
2002-06-11
影响因子:
11.1
作者:
Girvan, M;Newman, MEJ
通讯作者:
Newman, MEJ