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Regensburg 2010 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 30: Networks: From Topology to Dynamics V (joint DY, BP, SOE)

BP 30.5: Vortrag

Donnerstag, 25. März 2010, 17:00–17:15, H44

About scaling in the growth of clubs and communitiesLu Xin1, Diego Rybski2, and •Fredrik Liljeros11Department of Sociology, Stockholm University, S-106 91 Stockholm, Sweden — 2Potsdam Institute for Climate Impact Research, P.O. Box 60 12 03, 14412 Potsdam, Germany

Many systems comprise emergent power-laws in the growth rates with respect to the size of the units such as companies or cities. Here we study online communities and investigate the growth properties of clubs and social communities. We find power-law relations for the average growth rate and for the standard deviation. The quality of the data permits to analyze the growth -- complementary to (temporal) correlations -- on the basis of individuals behaving in a social context.

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