arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1506.04544physics.soc-phcond-mat.stat-mechcs.SInlin.AO
收藏

意见相互作用模型中的一致性和连贯性之间的相互作用

Interplay between consensus and coherence in a model of interacting opinions

Federico Battiston, Andrea Cairoli, Vincenzo Nicosia, Adrian Baule, Vito Latora

摘要:

社会系统中主体意见的形成是多种驱动力之间复杂平衡的结果。一方面,同侪施加的社会压力有利于地方共识的出现。另一方面,代理人同时参与不同主题的讨论会促使每个代理人在他活跃的所有主题中形成一套连贯的观点。此外,大众媒体等外部刺激的普遍作用,将整个人口拉向对不同主题的特定观点。在这里,我们提出了一个模型,在该模型中,代理人与相互关联的意见,在几个层上代表不同的主题进行交互,往往会传播自己的想法,他们的邻居,努力保持内部的一致性,由于每个代理人确定其意见之间的有意义的关系,在不同的主题,并在同一时间受到外部领域,类似于大众媒体的压力。我们发现,代理分配给他们的不同意见的内部耦合的异质性的存在允许获得具有混合水平的共识的状态,仍然确保所有的代理获得一组一致的意见。此外,我们发现,所有观察到的功能的模型中保存的热噪声的存在下,直到临界温度,之后的全球共识不再是可实现的。这表明我们的研究结果与现实社会系统的相关性,在现实社会系统中,噪音不可避免地以信息不确定性和误解的形式存在。该模型还展示了如何有效地利用大众媒体来支持一组选定的意见的传播,从而极化整个人口的共识。

英文摘要:

The formation of agents' opinions in a social system is the result of an intricate equilibrium among several driving forces. On the one hand, the social pressure exerted by peers favours the emergence of local consensus. On the other hand, the concurrent participation of agents to discussions on different topics induces each agent to develop a coherent set of opinions across all the topics in which he is active. Moreover, the pervasive action of external stimuli, such as mass media, pulls the entire population towards a specific configuration of opinions on different topics. Here we propose a model in which agents with interrelated opinions, interacting on several layers representing different topics, tend to spread their own ideas to their neighbourhood, strive to maintain internal coherence, due to the fact that each agent identifies meaningful relationships among its opinions on the different topics, and are at the same time subject to external fields, resembling the pressure of mass media. We show that the presence of heterogeneity in the internal coupling assigned by agents to their different opinions allows to obtain states with mixed levels of consensus, still ensuring that all the agents attain a coherent set of opinions. Furthermore, we show that all the observed features of the model are preserved in the presence of thermal noise up to a critical temperature, after which global consensus is no longer attainable. This suggests the relevance of our results for real social systems, where noise is inevitably present in the form of information uncertainty and misunderstandings. The model also demonstrates how mass media can be effectively used to favour the propagation of a chosen set of opinions, thus polarising the consensus of an entire population.

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。

↑