Self-Supervised Knowledge Representation for Rare Fraud and Operational Failure Detection in Multi-Channel Payment Systems. ITEGAM-JETIA, [S. l.], v. 12, n. 60, p. 452–460, 2026. DOI: 10.5935/jetia.v12i60.3877. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/3877. Acesso em: 22 oct. 2026.