LIU, Wuying; WANG, Lin; YI, Mianzhu; XIE, Nan. Active Multi-Field Learning for Spam Filtering. COMPUTING AND INFORMATICS, [S. l.], v. 33, n. 6, p. 1400–1427, 2015. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/2819. Acesso em: 1 may. 2024.