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arXiv 2106.08684cs.CYphysics.soc-ph
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COVID-19辩论期间YouTube上内容和回声室的可靠性

Reliability of Content and Echo Chambers on YouTube during the COVID-19 Debate

Niccolò Di Marco, Matteo Cinelli, Walter Quattrociocchi

摘要:

不准确及误导性信息的传播可能会改变行为并使危机管理复杂化,尤其是在COVID-19疫情等紧急情况下。本文旨在通过评估YouTube上的新闻消费来研究COVID-19大流行期间的信息扩散。首先,我们分析了超过200万用户对68个YouTube频道发布的13,000个视频的参与,这些视频带有政治偏见和事实核查指数。然后,我们研究了每个用户的政治偏好与他们对可疑(即,事实核查不佳)和可靠的信息。我们的研究结果,量化使用的措施,从信息论,提供证据的回声室存在两个方面代表的政治偏见和可信度的信息渠道。我们观察到,回声室结构不能再现后,适当地随机化用户的交互模式。此外,我们观察到用户的政治偏见和他们的倾向,消费高度可疑的新闻之间的关系。

英文摘要:

The spread of inaccurate and misleading information may alter behaviours and complicate crisis management, especially during an emergency like the COVID-19 pandemic. This paper aims to investigate information diffusion during the COVID-19 pandemic by evaluating news consumption on YouTube. First, we analyse more than 2 million users' engagement with 13,000 videos released by 68 YouTube channels, labelled with a political bias and fact-checking index. Then, we study the relationship between each userÕs political preference and their consumption of questionable (i.e., poorly fact-checked) and reliable information. Our results, quantified using measures from information theory, provide evidence for the existence of echo chambers across two dimensions represented by political bias and the trustworthiness of information channels. We observe that the echo chamber structure cannot be reproduced after properly randomising the users' interaction patterns. Moreover, we observe a relation between the political bias of users and their tendency to consume highly questionable news.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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