Analysis of ENEM's attendants between 2012 and 2017 using a clustering approach - Lima, Afonso Matheus Sousa; Florez, Alexander Ylnner Choquenaira; Lescano, Alexis Ivan Aspauza; Novaes, João Victor de Oliveira; Martins, Natalia de Fatima; Traina Junior, Caetano; Sousa, Elaine Parros Machado de; Rodrigues Junior, José Fernando; Cordeiro, Robson Leonardo Ferreira (Journal of Information and Data Management - JIDM, 2020)