论文标题
舆论动态具有新兴的集体记忆：漫长而异构新闻史的影响
Opinion dynamics with emergent collective memory: the impact of a long and heterogeneous news history
论文作者
论文摘要
在现代社会中，人们正在接触到许多信息，其中一些信息经常被重复或更具破坏性。在本文中，我们使用意见动力学模型来研究这一新闻如何影响社会。特别是，我们的研究旨在解释社会对某些事件的暴露如何深深地改变人们对当前和未来的看法。我们认为的意见的演变受外部信息和社会压力的影响。后者包括模仿，分化，同质及其相反的仇外心理。这些成分的组合产生了集体记忆效应，这是由外部信息触发的。在本文中，我们将注意力集中在当外部新闻的外观顺序是随机的情况下如何出现的。我们将展示要嵌入社会记忆中的新闻需要哪些特征。我们还将提供一种分析方式来衡量社会可以记住的何时提出大量新闻项目的信息。最后，我们将证明，当社会历史上存在某个新闻时，即使是扭曲的版本也足以触发对原始存储的信息的记忆。
In modern society people are being exposed to numerous information, with some of them being frequently repeated or more disruptive than others. In this paper we use a model of opinion dynamics to study how this news impact the society. In particular, our study aims to explain how the exposure of the society to certain events deeply change people's perception of the present and future. The evolution of opinions which we consider is influenced both by external information and the pressure of the society. The latter includes imitation, differentiation, homophily and its opposite, xenophobia. The combination of these ingredients gives rise to a collective memory effect, which is triggered by external information. In this paper we focus our attention on how this memory arises when the order of appearance of external news is random. We will show which characteristics a piece of news needs to have in order to be embedded in the society's memory. We will also provide an analytical way to measure how many information a society can remember when an extensive number of news items is presented. Finally we will show that, when a certain piece of news is present in the society's history, even a distorted version of it is sufficient to trigger the memory of the originally stored information.
