Social Influencing and Associated Random Walk Models: Asymptotic Consensus Times on the Complete Graph

Details Social Influencing and Associated Random Walk Models: Asymptotic Consensus Times on the Complete Graph Social Influencing and Associated Random Walk Models: Asymptotic Consensus Times on the Complete Graph

2011-03-24

arxiv.org/abs/1103.4659v1

Chaos 21, 025115 (2011)

Physics

Physics and Society

Scientific paper

10.1063/1.3598450

We investigate consensus formation and the asymptotic consensus times in stylized individual- or agent-based models, in which global agreement is achieved through pairwise negotiations with or without a bias. Considering a class of individual-based models on finite complete graphs, we introduce a coarse-graining approach (lumping microscopic variables into macrostates) to analyze the ordering dynamics in an associated random-walk framework. Within this framework, yielding a linear system, we derive general equations for the expected consensus time and the expected time spent in each macro-state. Further, we present the asymptotic solutions of the 2-word naming game, and separately discuss its behavior under the influence of an external field and with the introduction of committed agents.

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