Reddit.com is a popular social media platform among young people. Reddit users share their stories to seek support from other users, especially during the Covid-19 pandemic. Messages posted on Reddit and their content have provided researchers with opportunity to analyze public concerns. In this study, we analyzed sentiments of COVID-related messages posted on r/Depression. Our study poses the following questions: a) What are the common topics that the Reddit users discuss? b) Can we use these topics to classify sentiments of the posts? c) What matters concern people more during the pandemic? Key Words: Sentiment Classification, Depression, COVID-19, Reddit, LDA, BERT
翻译：Reddit.com是年轻人中流行的社交媒体平台。Reddit用户分享他们的故事,以寻求其他用户的支持,特别是在Covid-19大流行期间。Reddit上发布的信息及其内容为研究人员提供了分析公众关注问题的机会。在本研究中,我们分析了在r/depression上发布的与COVID有关的信息的情绪。我们的研究提出了以下问题:(a) Redddit用户讨论的共同主题是什么? (b) 我们能否利用这些专题来分类这些文章的情绪? (c) 这场大流行期间人们更关心什么?关键词:感官分类、抑郁症、COVID-19、Reddit、LDA、BERT。
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