Dresden 2017 – scientific programme
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 21: Social Systems II
SOE 21.1: Talk
Thursday, March 23, 2017, 17:00–17:15, GÖR 226
Explosive dynamics of social networks — •Nora Molkenthin1,2 and Marc Timme1,2 — 1Network Dynamics, Max Planck Institute for Dynamics and Self-Organization (MPIDS), 37077 Göttingen, Germany — 2Institute for Nonlinear Dynamics, Faculty of Physics, University of Göttingen, 37077 Göttingen, Germany
Explosive transitions in and on complex networks have recently attracted attention for percolation and synchronization processes. Here we introduce a novel one-parameter family of random network ensembles that exhibit an explosive transition of the degree distribution. The model can be applied to the dynamics of social network interactions, where the parameter measures the degree of decision power in pairwise interactions between individuals. The revealed mechanism underlying the transition may help to understand the key structural difference between large online communities and personal face-to-face friendships.