The probability of this happening is linearly related to this.Ĭaluculate the change in coherency if this belief was copied HOW IT WORKSĪ fixed network of agents is formed, based on the number ofĪgents, number of arcs per agent and the topology selected.Īgents are assigned one (or one of two) coherency functions,Īgents are randomly assigned each of the atomic set ofīeliefs (as determined by the parameter number of beliefs)Ĭaluculate the change in coherency if this belief was This model suggests hypotheses about group opinion dynamics thatĭiffer from that of many established models. Pattern of the core beliefs – opinion is thus an outcome A resulting measured “opinion†canīe retrieved in a number of ways, here as a weighted sum of a Related to the change in coherence that would result in an agent'sīelief store. Both of these processes happen with a probability Beliefs can be lost by being dropped from anĪgent's store. The social influence is achieved through gaining of a beliefĪcross a social link. These beliefs are to differentĮxtents coherent with each other – this is modelled usingĪ coherence function from possible sets of core beliefs to. These areĬonceived of existing against a background of a large set of In this model there are a fixed number of represented beliefs,Įach of which are either held or not by each agent. Thagard's theory of explanatory coherence. This is a model of mutual social influence of beliefs based upon Change in a Population using Explanatory Coherence
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