Regensburg 2010 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 27: Networks: From Topology to Dynamics V (joint session of BP, DY, SOE)

DY 27.5: Talk

Thursday, March 25, 2010, 17:00–17:15, H44

About scaling in the growth of clubs and communities — Lu Xin¹, Diego Rybski², and •Fredrik Liljeros¹ — ¹Department 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.