Emergence of communities in weighted networks.
Topology and weights are closely related in weighted complex networks and this is reflected in their modular structure. We present a simple network model where the weights are generated dynamically and they shape the developing topology. By tuning a model parameter governing the importance of weights, the resulting networks undergo a gradual structural transition from a module-free topology to one with communities. The model also reproduces many features of large social networks, including the "weak links" property.
Kumpula
Jussi M
JM
Laboratory of Computational Engineering, Helsinki University of Technology, P.O. Box 9203, FIN-02015 HUT, Finland. jkumpula@lce.hut.fi
Onnela
Jukka-Pekka
JP
Saramäki
Jari
J
Kaski
Kimmo
K
Kertész
János
J