arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1603.04789physics.soc-phcs.SI
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移动代理中集合种群和回声室的出现

Emergence of metapopulations and echo chambers in mobile agents

Michele Starnini, Mattia Frasca, Andrea Baronchelli

摘要:

多智能体模型通常描述在物理空间中隔离的群体,即细分为集合群体,或者在意见生态学中隔离的群体,即在回声室中划分。在这里,我们将展示如何同质性和社会影响力之间的相互作用控制的出现,这两种隔离在一个简单的模型中的移动代理,赋予一个连续的意见变量。在该模型中,物理上的接近决定了意见的逐步趋同,但不同的意见导致代理人远离对方。这种流动性和社会动态之间的反馈决定了一个稳定的动态集合种群的情况下,物理上分离的群体志同道合的个人通过交换代理人相互作用的开始。在社会互动中进一步引入确认偏见,定义为个人倾向于支持与自己相匹配的意见,导致回音室的出现,不同的意见也可以在同一群体中共存。我们相信,该模型可能会感兴趣的研究人员调查隔离的起源在离线和在线世界。

英文摘要:

Multi-agent models often describe populations segregated either in the physical space, i.e. subdivided in metapopulations, or in the ecology of opinions, i.e. partitioned in echo chambers. Here we show how the interplay between homophily and social influence controls the emergence of both kinds of segregation in a simple model of mobile agents, endowed with a continuous opinion variable. In the model, physical proximity determines a progressive convergence of opinions but differing opinions result in agents moving away from each others. This feedback between mobility and social dynamics determines to the onset of a stable dynamical metapopulation scenario where physically separated groups of like-minded individuals interact with each other through the exchange of agents. The further introduction of confirmation bias in social interactions, defined as the tendency of an individual to favor opinions that match his own, leads to the emergence of echo chambers where different opinions can coexist also within the same group. We believe that the model may be of interest to researchers investigating the origin of segregation in the offline and online world.

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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