PAMBUDI, R.; MADANI, F. Analysis of public opinion sentiment against COVID-19 in Indonesia on twitter using the k-nearest neighbor algorithm and decision tree. Journal of Soft Computing Exploration, [S. l.], v. 3, n. 2, p. 117 - 122, 2022. DOI: 10.52465/joscex.v3i2.88. Disponível em: https://www.shmpublisher.com/index.php/joscex/article/view/88. Acesso em: 28 jul. 2026.