论文标题
一个嘈杂的舆论形成模型，有两个相对的大众媒体
A noisy opinion formation model with two opposing mass media
论文作者
论文摘要
个人态度形成及其宏观后果的过程已成为一个有趣的研究主题，并且已经提出了基于代理的意见形成模型来理解这种现象。这项研究进行了基于代理的模拟，并检查了大众媒体在嘈杂的舆论形成过程中的作用，在这种过程中，观点异质性通过同化的强度较弱和伴随意见修改的错误来保留。在计算模型中，代理商符合社交网络中邻居的意见。此外，每个代理商都倾向于受两个具有固定意见的外部代理之一的影响，即在意见范围内采取相反立场的大众媒体。仿真结果表明，与大众介质的相互作用的可能性很小，即使具有极端的大众位置值，也会降低意见异质性。但是，与大众媒体的相互作用频率很大增加了意见异质性。因此，中间同化强度实现了最少的异质意见分布。大众媒体的影响抑制了网络拓扑的影响。我们的仿真意味着大众媒体可以根据其位置和影响力强度在质上发挥不同的作用。
Processes of individual attitude formation and their macroscopic consequences have become an intriguing research topic, and agent-based models of opinion formation have been proposed to understand this phenomenon. This study conducted an agent-based simulation and examined the role of mass media in a noisy opinion formation process, where opinion heterogeneity is preserved by a weak intensity of assimilation and errors accompanying opinion modifications. In a computational model, agents conformed to their neighbours' opinions in social networks. In addition, each agent tended to be influenced by one of a two external agents with fixed opinions, that is, mass media that take opposite positions on an opinion spectrum. The simulation results demonstrated that a small probability of interactions with mass media reduces opinion heterogeneity even with extreme mass media position values. However, a large frequency of interactions with mass media increases opinion heterogeneity. Accordingly, intermediate assimilation strength achieves the least heterogeneous opinion distribution. The influence of mass media dampens the effects of network topology. Our simulation implies that mass media can play qualitatively different roles depending on their positions and intensity of influence.
