Cross-Partisan Discussions on YouTube: Conservatives Talk to Liberals but Liberals Don't Talk to Conservatives
Cross-Partisan Discussions on YouTube: Conservatives Talk to Liberals but Liberals Don't Talk to Conservatives
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DOI：
10.1609/icwsm.v15i1.18105
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发表时间：
2021-04
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影响因子：
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通讯作者：
Siqi Wu;P. Resnick
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文献类型：
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作者：
Siqi Wu;P. Resnick
我们提出了YouTube上自由派和保守派之间跨党派讨论的第一个大规模测量研究，基于来自美国党派媒体973个频道的274，241个政治视频的数据集，以及2020年8个月内930万用户的1.34亿条评论。与回声室的简单叙述相反，我们发现了令人惊讶的串扰量：大多数至少有10条评论的用户在左倾和右倾的YouTube频道上至少发布过一次。然而，串扰是不对称的。基于层次注意力模型预测的用户倾向，我们发现，保守派更有可能评论左倾的视频比自由派的右倾视频。其次，YouTube的评论排序算法使得跨党派评论不那么明显;例如，保守派的评论占左倾视频评论的26.3%，但只有20%多一点的评论排在前20位。最后，使用透视API的毒性评分作为衡量质量的标准，我们发现，保守派并没有显着更有毒比自由派时，用户直接评论的视频内容。然而，当用户回复其他用户的评论时，我们发现在左倾和右倾的视频中，跨党派的回复比共同党派的回复更具毒性，其中跨党派的回复在回复者的家乡尤其有害。
We present the first large-scale measurement study of cross-partisan discussions between liberals and conservatives on YouTube, based on a dataset of 274,241 political videos from 973 channels of US partisan media and 134M comments from 9.3M users over eight months in 2020. Contrary to a simple narrative of echo chambers, we find a surprising amount of cross-talk: most users with at least 10 comments posted at least once on both left-leaning and right-leaning YouTube channels. Cross-talk, however, was not symmetric. Based on the user leaning predicted by a hierarchical attention model, we find that conservatives were much more likely to comment on left-leaning videos than liberals on right-leaning videos. Secondly, YouTube's comment sorting algorithm made cross-partisan comments modestly less visible; for example, comments from conservatives made up 26.3% of all comments on left-leaning videos but just over 20% of the comments were in the top 20 positions. Lastly, using Perspective API's toxicity score as a measure of quality, we find that conservatives were not significantly more toxic than liberals when users directly commented on the content of videos. However, when users replied to comments from other users, we find that cross-partisan replies were more toxic than co-partisan replies on both left-leaning and right-leaning videos, with cross-partisan replies being especially toxic on the replier's home turf.