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Opinion dynamics model with weighted influence: Exit probability and dynamics
SOHAM BISWAS, SUMAN SINHA,
Published in AMER PHYSICAL SOC
2013
Volume: 88
   
Issue: 2
Abstract
We introduce a stochastic model of binary opinion dynamics in which the opinions are determined by the size of the neighboring domains. The exit probability here shows a step function behavior, indicating the existence of a separatrix distinguishing two different regions of basin of attraction. This behavior, in one dimension, is in contrast to other well known opinion dynamics models where no such behavior has been observed so far. The coarsening study of the model also yields novel exponent values. A lower value of persistence exponent is obtained in the present model, which involves stochastic dynamics, when compared to that in a similar type of model with deterministic dynamics. This apparently counterintuitive result is justified using further analysis. Based on these results, it is concluded that the proposed model belongs to a unique dynamical class.
About the journal
JournalPhysical Review E
PublisherAMER PHYSICAL SOC
ISSN2470-0045
Open AccessYes