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Infodemics on Youtube: Reliability of Content and Echo Chambers on COVID-19
arXiv - CS - Computers and Society Pub Date : 2021-06-16 , DOI: arxiv-2106.08684
Niccolò Di Marco, Matteo Cinelli, Walter Quattrociocchi

Social media radically changed how information is consumed and reported. Moreover, social networks elicited a disintermediated access to an unprecedented amount of content. The world health organization (WHO) coined the term infodemics to identify the information overabundance during an epidemic. Indeed, the spread of inaccurate and misleading information may alter behaviors and complicate crisis management and health responses. This paper addresses information diffusion during the COVID-19 pandemic period with a massive data analysis on YouTube. First, we analyze more than 2M users' engagement in 13000 videos released by 68 different YouTube channels, with different political bias and fact-checking indexes. We then investigate the relationship between each user's political preference and her/his consumption of questionable/reliable information. Our results, quantified using information theory measures, provide evidence for the existence of echo chambers across two dimensions represented by the political bias and by the trustworthiness of information channels. Finally, we observe that the echo chamber structure cannot be reproduced after properly randomizing the users' interaction patterns.

中文翻译:

Youtube 上的信息流行病:COVID-19 上内容和回声室的可靠性

社交媒体从根本上改变了信息的消费和报告方式。此外,社交网络引发了对空前数量的内容的非中介访问。世界卫生组织 (WHO) 创造了信息流行病一词,以识别流行病期间的信息过剩。事实上,不准确和误导性信息的传播可能会改变行为并使危机管理和健康应对复杂化。本文通过 YouTube 上的大量数据分析解决了 COVID-19 大流行期间的信息传播问题。首先,我们分析了超过 200 万用户对 68 个不同 YouTube 频道发布的 13000 个视频的参与度,这些视频具有不同的政治偏见和事实核查指数。然后我们调查每个用户之间的关系 的政治偏好和她/他对可疑/可靠信息的消费。我们的结果,使用信息理论测量进行量化,为政治偏见和信息渠道的可信度所代表的两个维度的回声室的存在提供了证据。最后,我们观察到在正确随机化用户的交互模式后无法重现回声室结构。
更新日期:2021-06-17
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