Trend of Narratives in the Age of Misinformation.
Trend of Narratives in the Age of Misinformation.
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DOI：
10.1371/journal.pone.0134641
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Quattrociocchi W
中科院分区：
文献类型：
--
作者：
Bessi A;Zollo F;Del Vicario M;Scala A;Caldarelli G;Quattrociocchi W
社交媒体提供了一条从内容制作者到消费者的直接途径，改变了用户获取信息、辩论和塑造世界观的方式。这种非中介化可能会削弱在社会相关问题上的共识，转而支持谣言、不信任或阴谋论--例如，导致全球变暖的化学痕迹、疫苗与自闭症之间的联系，或新世界秩序阴谋。以前的研究指出，阴谋类内容的消费者可能会聚集在同性恋群体中--即回音室。沿着这条道路，我们通过彻底的定量分析，研究了在意大利Facebook的阴谋论回音室中，不同的话题是如何被消费的。通过半自动主题抽取策略，我们发现消费最多的内容在语义上涉及四个特定类别：环境、饮食、健康和地缘政治。我们通过比较用户在属于这些不同语义类别的帖子上的活动(点赞和评论)来发现相似的消费模式。最后，我们对用户跨不同主题的移动性进行了建模，发现用户的活跃度越高，他就越有可能跨越所有类别。一旦进入阴谋叙事，用户往往会接受整个语料库。
Social media enabled a direct path from producer to consumer of contents changing the way users get informed, debate, and shape their worldviews. Such a disintermediation might weaken consensus on social relevant issues in favor of rumors, mistrust, or conspiracy thinking—e.g., chem-trails inducing global warming, the link between vaccines and autism, or the New World Order conspiracy. Previous studies pointed out that consumers of conspiracy-like content are likely to aggregate in homophile clusters—i.e., echo-chambers. Along this path we study, by means of a thorough quantitative analysis, how different topics are consumed inside the conspiracy echo-chamber in the Italian Facebook. Through a semi-automatic topic extraction strategy, we show that the most consumed contents semantically refer to four specific categories: environment, diet, health, and geopolitics. We find similar consumption patterns by comparing users activity (likes and comments) on posts belonging to these different semantic categories. Finally, we model users mobility across the distinct topics finding that the more a user is active, the more he is likely to span on all categories. Once inside a conspiracy narrative users tend to embrace the overall corpus.