%0期刊文章%@ 2369- 2960% I JMIR出版物%V 7%卡塔尔世界杯8强波胆分析 N 11% P e29789% T研究社交媒体在COVID-19疫苗接种中的效用:672,133个Twitter帖子的无监督学习%A Liew,Tau Ming %A Lee,Cia Sin %+新加坡总医院精神科,Outram Road, Singapore, 169608, Singapore, 65 62223322, liew.tau.ming@singhealth.com.sg %K社交媒体%K COVID-19 %K疫苗犹豫%K自然语言处理%K机器学习%K信息流行病学%D 2021 %7 3.11.2021 %9原始论文%J JMIR公共卫生监测%G英语%X背景:尽管最近已经有了COVID-19疫苗,但全球大规模疫苗接种工作可能因普遍存在的疫苗犹豫问题而受到阻碍。目的:本研究的目的是利用社交媒体数据获取近实时的公众对COVID-19疫苗的观点和看法,旨在了解引起公众关注的关键问题,以及成功接种COVID-19疫苗的障碍和促进因素。方法:在2020年11月18日发布了第一种有效疫苗的新闻稿后的11周内,在推特上搜索与“COVID-19”和“疫苗”相关的推文。使用无监督机器学习方法(即结构主题建模)从推文中识别主题,通过手动进行主题分析,并在COM-B(行为的能力、机会和动机组件)模型的理论框架的指导下,将每个主题进一步分组为主题。使用基于规则的机器学习模型VADER(价感字典和情感推理器)对推文进行情感分析。结果:世界各地的个人发布了与COVID-19疫苗相关的推文(N=672,133)。确定了六个主要主题:(1)与COVID-19疫苗相关的情绪反应(19.3%),(2)与COVID-19疫苗相关的公众关注(19.6%),(3)关于COVID-19疫苗相关新闻的讨论(13.3%),(4)关于COVID-19疫苗的公共卫生传播(10.3%),(5)关于COVID-19疫苗接种方法的讨论(17.1%),以及(6)关于COVID-19疫苗分发的讨论(20.3%)。带有负面情绪的推文主要涉及与COVID-19疫苗相关的情绪反应和公众担忧。 Tweets related to facilitators of vaccination showed temporal variations over time, while tweets related to barriers remained largely constant throughout the study period. Conclusions: The findings from this study may facilitate the formulation of comprehensive strategies to improve COVID-19 vaccine uptake; they highlight the key processes that require attention in the planning of COVID-19 vaccination and provide feedback on evolving barriers and facilitators in ongoing vaccination drives to allow for further policy tweaks. The findings also illustrate three key roles of social media in COVID-19 vaccination, as follows: surveillance and monitoring, a communication platform, and evaluation of government responses. %M 34583316 %R 10.2196/29789 %U https://publichealth.www.mybigtv.com/2021/11/e29789 %U https://doi.org/10.2196/29789 %U http://www.ncbi.nlm.nih.gov/pubmed/34583316
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