Non-monotonic spontaneous magnetization in a Sznajd-like consensus model
نویسندگان
چکیده
منابع مشابه
Non-monotonic Spontaneous Magnetization in a Sznajd-like Con- Sensus Model
Ising or Potts models [1] of ferromagnetism have been widely used to describe locally interacting social or economic systems[2][3][4]. We consider a related model, introduced by Sznajd[5][6] to describe the evolution of consensus in a society. In this model, the opinion or state of any spins can only be changed through the influence of neighbouring pairs of similarly aligned spins. Such pairs c...
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Ising models have been studied since nearly one century, and simulated on computers since more than four decades. A new version is the Sznajd model [1] where again each lattice site carries a spin ±1. If two randomly selected neighbouring spins have the same value, they force their neighbours to accept this value; otherwise nothing is changed and a new pair is selected. In the Ochrombel simplif...
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In the consensus model of Sznajd, opinions are integers and a randomly chosen pair of neighbouring agents with the same opinion forces all their neighbours to share that opinion. We propose a simple extension of the model to continuous opinions, based on the criterion of bounded confidence which is at the basis of other popular consensus models. Here the opinion s is a real number between 0 and...
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In the Sznajd consensus model on the square lattice, two people who agree in their opinions convince their neighbours of this opinion. We generalize it to many layers representing many age levels, and check if still a consensus among all layers is possible. Advertising sometimes but not always produces a consensus on the advertised opinion.
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In this work we study a modified version of the Sznajd sociophysics model. In particular we introduce reputation, a mechanism that limits the capacity of persuasion of the agents. The reputation is introduced as a score which is time-dependent, and its introduction avoid dictatorship (all spins parallel) for a wide range of parameters. The relaxation time follows a log-normal-like distribution....
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2004
ISSN: 0378-4371
DOI: 10.1016/j.physa.2003.10.062