School of Information and Communication Engineering,Hainan University,Haikou,570100,China;
School of Computer Science and Cyberspace Security,Hainan University,Haikou,570100,China;
University of Chinese Academy of Sciences,Shenzhen,518000,China;
National University of Defense Technology,Changsha,410000,China;
Department of Mathematics and Computer Science,Northeastern State University,Tahlequah,USA;
COVID-19; public opinion monitoring; data mining; Chinese sentiment analysis; data visualization;