Rodrigues, Josiane, Marco Cristo, Javier Zambrano Ferreira, David Fernandes, and André Carvalho. “Multi-Entity Polarity Analysis and Detection of Subjectivity in Financial Documents”. Journal of Information and Data Management 6, no. 2 (January 20, 2016): 130. Accessed May 5, 2024. https://sol.sbc.org.br/journals/index.php/jidm/article/view/1564.