Vieira, João Paulo Albuquerque, and Raimundo Santos Moura. “Analysis of Aspect Extraction Methods in Regular Opinions”. iSys - Brazilian Journal of Information Systems 13, no. 3 (June 17, 2020): 82–97. Accessed April 25, 2024. https://sol.sbc.org.br/journals/index.php/isys/article/view/796.