Physics – Computational Physics
Scientific paper
2007-09-29
J. Phys. A: Math. Theor. 41 (2008) 224001
Physics
Computational Physics
Scientific paper
10.1088/1751-8113/41/22/224001
Community definitions usually focus on edges, inside and between the communities. However, the high density of edges within a community determines correlations between nodes going beyond nearest-neighbours, and which are indicated by the presence of motifs. We show how motifs can be used to define general classes of nodes, including communities, by extending the mathematical expression of Newman-Girvan modularity. We construct then a general framework and apply it to some synthetic and real networks.
Arenas Alex
Fernandez Alberto
Fortunato Santo
Gomez Sergio
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