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Fact-checking strategies to limit urban legends spreading in a segregated society
Applied Network Science Pub Date : 2019-12-04 , DOI: 10.1007/s41109-019-0233-1
Marcella Tambuscio , Giancarlo Ruffo

We propose a framework to study the spreading of urban legends, i.e., false stories that become persistent in a local popular culture, where social groups are naturally segregated by virtue of many (both mutable and immutable) attributes. The goal of this work is identifying and testing new strategies to restrain the dissemination of false information, focusing on the role of network polarization. Following the traditional approach in the study of information diffusion, we consider an epidemic network-based model where the agents can be ‘infected’ after being exposed to the urban legend or to its debunking depending on the belief of their neighborhood. Simulating the spreading process on several networks showing different kind of segregation, we perform a what-if analysis to compare strategies and to understand where it is better to locate eternal fact-checkers, nodes that maintain their position as debunkers of the given urban legend. Our results suggest that very few of these strategies have a chance to succeed. This apparently negative outcomes turns out to be somehow surprising taking into account that we ran our simulations under a highly pessimistic assumption, such that the ‘believers’, i.e., agents that accepted as true the urban legend after they have been exposed to it, will not change their belief no matter of how much external or internal additional informational sources they access to. This has implications on policies that are supposed to decide which strategy to apply to stop misinformation from spreading in real world networks.

中文翻译:

事实检查策略,可限制城市传说在种族隔离的社会中传播

我们提出了一个框架来研究城市传奇的传播,即在当地流行文化中持续存在的虚假故事,在这些流行文化中,社会群体由于许多(可变和不可变的)属性而自然地被隔离了。这项工作的目标是确定并测试新策略,以限制虚假信息的传播,重点是网络极化的作用。遵循信息传播研究中的传统方法,我们考虑一种基于流行网络的模型,在这种模型中,特工在暴露于城市传奇或被揭穿后,可以根据其邻里的信仰而被“感染”。在显示不同类型隔离的几个网络上模拟传播过程,我们进行假设分析比较策略并了解将永恒的事实检查器定位在哪里更好,这些节点将保持其作为给定城市传奇的拆弹手的位置。我们的结果表明,这些策略中很少有机会获得成功。考虑到我们在高度悲观的假设下进行模拟,这种明显的负面结果令人惊讶,这使得“信徒”(即在接触到真实的城市传奇之后被接受为真实的城市传奇人物)将无论他们访问多少外部或内部其他信息资源,都不会改变他们的信念。这对应该决定采用哪种策略来阻止错误信息在现实世界网络中传播的政策产生了影响。
更新日期:2019-12-04
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