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arXiv 2301.09233physics.soc-phcond-mat.stat-mech
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妥协的副作用:有界置信度观点动力学模型中代理异质性与网络效应的耦合

On the side-effects of compromising: coupling agents' heterogeneity with network effects on a bounded confidence opinion dynamics model

Rémi Perrier, Hendrik Schawe, Laura Hernández

摘要:

我们提出了一个广泛的研究异质社会代理人和他们的异质社会联系的联合影响,在一个有界的信心观点动力学模型。该模型的完整相图探索两种不同的网络的拓扑结构,并比较两个相反的极端情况下:一方面异构代理构成一个混合人口,另一方面,他们的相互作用是由一个格子建模。结果表明,当倾向于妥协的主体与封闭的主体共存时,动力学的稳态呈现共存相。特别是,与网络中的同质情况或完全混合人口中的异质情况不同,社会最终可能会对一种极端意见达成共识。此外,在动态过程中,共识可能会从意见空间的一个极端被推翻到另一个极端。我们还表明,标准的序参量,最大的意见集群的归一化平均大小,在这种情况下,可能是误导,因为它隐藏了这些阶段的存在。在社会舆论被推翻的阶段,不需要有具有特殊特征的代理人(顽固分子、极端分子等);它是同意极端意见的行动者与持相反意见的其余群体相互作用的结果。在前者中,有些人可能会倾向于与其他主体妥协,这些主体根据他们在网络中的位置,可能会成为两个群体之间的桥梁,慢慢地将整个社会吸引到另一个极端。

英文摘要:

We present an extensive study of the joint effects of heterogeneous social agents and their heterogeneous social links in a bounded confidence opinion dynamics model. The full phase diagram of the model is explored for two different network's topologies and compared to two opposed extreme cases: on one hand heterogeneous agents which constitute a mixed population and on the other, their interactions are modeled by a lattice. The results show that when agents prone to compromising coexist with close minded ones, the steady state of the dynamics shows coexistent phases. In particular, unlike the homogeneous case in networks, or the heterogeneous case in fully mixed population, it is possible that the society ends up in consensus around one extreme opinion. Moreover, during the dynamics, the consensus may be overturned from one extreme to the other of the opinion space. We also show that the standard order parameter, the normalized average size of the largest opinion cluster, may be misleading in this case, as it hides the existence of these phases. The phase where the opinion of the society is overturned does not require the presence of agents with special characteristics, (stubborn, extremists, etc.); it results from the interplay of agents which have agreed on an extreme opinion with the remaining group that holds the opposite one. Among the former, some may be prone to compromising with other agents which are out of the majority group, these agents, according to their location in the network, may act like bridges between the two groups and slowly attract the whole society to the other extreme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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