论文标题
落入Echo Chamber：意大利疫苗接种在Twitter上的辩论
Falling into the Echo Chamber: the Italian Vaccination Debate on Twitter
论文作者
论文摘要
在2000年代初期被认为消除的疾病，美国和欧洲的麻疹再次出现，伴随着关于社交媒体上疫苗接种的优点的越来越多的辩论。在这项研究中，我们研究了Twitter上的疫苗接种辩论在多大程度上是为潜在的促进疫苗接种犹豫的潜在推广。我们专注于意大利，这是受最新麻疹暴发影响最大的国家之一。我们发现，疫苗接种怀疑论者以及拥护者都居住在自己独特的“ Echo Chambers”中。这些社区的结构也有所不同，怀疑论者以紧密联系的集群排列，并提倡围绕很少的权威枢纽组织自己。在这些回声室的中心，我们找到了热心的支持者，为此我们建立了高度准确的网络和基于内容的分类器（达到95％的交叉验证精度）。这项研究的见解为潜在的未来干预措施提供了几种途径，包括网络引导的定位，考虑政治环境以及监视替代信息来源。
The reappearance of measles in the US and Europe, a disease considered eliminated in early 2000s, has been accompanied by a growing debate on the merits of vaccination on social media. In this study we examine the extent to which the vaccination debate on Twitter is conductive to potential outreach to the vaccination hesitant. We focus on Italy, one of the countries most affected by the latest measles outbreaks. We discover that the vaccination skeptics, as well as the advocates, reside in their own distinct "echo chambers". The structure of these communities differs as well, with skeptics arranged in a tightly connected cluster, and advocates organizing themselves around few authoritative hubs. At the center of these echo chambers we find the ardent supporters, for which we build highly accurate network- and content-based classifiers (attaining 95% cross-validated accuracy). Insights of this study provide several avenues for potential future interventions, including network-guided targeting, accounting for the political context, and monitoring of alternative sources of information.
