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arXiv 1805.08030cs.SI
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两极分化排名:欧洲Facebook新闻消费研究

Polarization Rank: A Study on European News Consumption on Facebook

Ana Lucía Schmidt, Fabiana Zollo, Antonio Scala, Walter Quattrociocchi

摘要:

万维网的出现改变了我们生产和获取信息的方式。最近的研究表明,用户倾向于选择与他们的信仰体系相一致的信息,围绕着共同的叙述形成了由志同道合的人组成的两极分化的群体,而不同的信息则被忽略了。在这种环境下,用户合作构建和加强他们的共享叙事,使任何揭穿效率低下的尝试。这种配置甚至发生在在线新闻消费中,考虑到63%的用户直接从社交媒体获取新闻,一种假设是,更多的两极分化允许进一步传播错误信息。沿着这条道路,我们关注不同欧洲国家(意大利,法国,西班牙和德国)Facebook新闻媒体用户的两极分化。首先,我们比较了不同国家的页面发布行为和用户交互模式,并观察不同的发布,喜欢和评论率。其次,我们探索用户与不同页面交互的趋势(即,选择性曝光)以及围绕特定页面产生的两极分化社区的出现。然后,我们引入一个新的度量--即,极化等级--衡量每个国家社区的极化程度。我们发现,意大利是最两极分化的国家,其次是法国,德国和西班牙。最后,我们提出了一个变化的有界置信度模型来模拟这些社区的出现,考虑用户的参与和信任的新闻。我们的研究结果表明,在信息传播的信任起着关键作用,对两极分化的用户在线。

英文摘要:

The advent of WWW changed the way we can produce and access information. Recent studies showed that users tend to select information that is consistent with their system of beliefs, forming polarized groups of like-minded people around shared narratives where dissenting information is ignored. In this environment, users cooperate to frame and reinforce their shared narrative making any attempt at debunking inefficient. Such a configuration occurs even in the consumption of news online, and considering that 63% of users access news directly form social media, one hypothesis is that more polarization allows for further spreading of misinformation. Along this path, we focus on the polarization of users around news outlets on Facebook in different European countries (Italy, France, Spain and Germany). First, we compare the pages' posting behavior and the users' interacting patterns across countries and observe different posting, liking and commenting rates. Second, we explore the tendency of users to interact with different pages (i.e., selective exposure) and the emergence of polarized communities generated around specific pages. Then, we introduce a new metric -- i.e., polarization rank -- to measure polarization of communities for each country. We find that Italy is the most polarized country, followed by France, Germany and lastly Spain. Finally, we present a variation of the Bounded Confidence Model to simulate the emergence of these communities by considering the users' engagement and trust on the news. Our findings suggest that trust in information broadcaster plays a pivotal role against polarization of users online.

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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