论文标题
YouTube促销阴谋视频的纵向分析
A Longitudinal Analysis of YouTube's Promotion of Conspiracy Videos
论文作者
论文摘要
阴谋理论在社交媒体上蓬勃发展，引起了人们对这种内容的促进虚假信息传播，支持极端主义意识形态的关注，在某些情况下会导致暴力。在立法者和公众受到的审查和压力的增加，YouTube宣布努力改变他们的建议算法，以使最严重的阴谋视频被降级和贬低。为了验证这一说法，我们开发了一个分类器来自动确定视频是否是阴谋的（例如，月球着陆是假的，吉萨的金字塔是由外星人建造的，世界末日的预言等）。我们将此分类器与YouTube的Watch-Next算法相结合，以超过一千个流行的信息渠道获得，以获取YouTube积极推广的视频的长期图片。我们还为阴谋理论获得了所谓的滤光效应的趋势。
Conspiracy theories have flourished on social media, raising concerns that such content is fueling the spread of disinformation, supporting extremist ideologies, and in some cases, leading to violence. Under increased scrutiny and pressure from legislators and the public, YouTube announced efforts to change their recommendation algorithms so that the most egregious conspiracy videos are demoted and demonetized. To verify this claim, we have developed a classifier for automatically determining if a video is conspiratorial (e.g., the moon landing was faked, the pyramids of Giza were built by aliens, end of the world prophecies, etc.). We coupled this classifier with an emulation of YouTube's watch-next algorithm on more than a thousand popular informational channels to obtain a year-long picture of the videos actively promoted by YouTube. We also obtained trends of the so-called filter-bubble effect for conspiracy theories.
