Dr. Ayan Chattopadhyay, and Mr. Mukul Basu , translators. “Unsupervised Learning Based Brand Sentiment Mining Using Lexicon Approaches A Study on Amazon Alexa”. Indian Journal of Data Mining (IJDM), vol. 2, no. 1, Jan. 2024, pp. 15-20, https://doi.org/10.54105/ijdm.C1619.051322.