Unsupervised Learning Based Brand Sentiment Mining using Lexicon Approaches A Study on Amazon Alexa. Indian Journal of Data Mining (IJDM), [S. l.], v. 2, n. 1, p. 15–20, 2024. DOI: 10.54105/ijdm.C1619.051322. Disponível em: https://www.journals.latticescipub.com/index.php/ijdm/article/view/319.. Acesso em: 1 may. 2025.