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The Coronavirus Disease 2019 has a huge impact on countries all over the world The analysis of public opinions during this period is conducive to the government timely understanding and solving the difficulties faced by the people In this paper, we crawled text data from different periods of “Wuhan lockdown” and “Wuhan lift lockdown” from Sina Weibo for analysis Then we use LDA topic modeling and LDAvis visualization methods to compare the topics that people pay attention to in different periods We find that people’s concerns are indeed different in different periods Therefore, public opinion analysis can enable decision-makers to understand a large amount of information in a short time, and the government can establish a good relationship with the public by solving hot and difficult issues of public concern By analyzing the public opinions during the epidemic in China, we can also know the corresponding measures taken by the Chinese government At present, many countries in the world are deeply affected by the epidemic, and this paper also provides reference for the reconstruction of these countries © 2020, Springer Nature Switzerland AG
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