PENG, W.; PARK, D. H. Generate Adjective Sentiment Dictionary for Social Media Sentiment Analysis Using Constrained Nonnegative Matrix Factorization. Proceedings of the International AAAI Conference on Web and Social Media, [S. l.], v. 5, n. 1, p. 273-280, 2021. DOI: 10.1609/icwsm.v5i1.14090. Disponível em: https://ojs.aaai.org/index.php/ICWSM/article/view/14090. Acesso em: 16 apr. 2024.