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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 11: Opinion Formation II

SOE 11.1: Vortrag

Dienstag, 12. März 2013, 11:15–11:30, H37

Opinions, Conflicts and Consensus: Modeling Social Dynamics in a Collaborative Environment — •János Török¹, Gerardo Iñiguez², Taha Yasseri¹, Maxi San Miguel³, Kimmo Kaski², and János Kertész^4,1,2 — ¹Institute of Physics, Budapest University of Technology and Economics, H-1111 Budapest, Hungary — ²Department of Biomedical Engineering and Computational Science, FI-00076 Aalto, Finland — ³FISC (CSIC-UIB), Campus Universitat Illes Balears, E-07071 Palma de Mallorca, Spain — ⁴Center for Network Science, Central European University, H-1051 Budapest, Hungary

Information-communication technology promotes collaborative environments like Wikipedia where, however, controversiality and conflicts can appear. To describe the rise, persistence, and resolution of such conflicts we devise an extended opinion dynamics model where agents with different opinions perform a single task to make a consensual product. As a function of the convergence parameter describing the influence of the product on the agents, the model shows spontaneous symmetry breaking of the final consensus opinion represented by the medium. For the case when agents are replaced with new ones at a certain rate, a transition from mainly consensus to a perpetual conflict occurs, which is in qualitative agreement with the scenarios observed in Wikipedia.