Emergence of communities in weighted networks

Kumpula, J. M.; Onnela, J. -P.; Saramaki, J.; Kaski, K.; Kertesz, J.

Emergence of communities in weighted networks

Authors

Description

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.
4 pages, 5 figures