NGOC THANH SANG, Vu. Enhancing Credit Card Fraud Detection under Severe Class Imbalance using Cost-Sensitive Learning and Threshold Optimization. EAI Endorsed Transactions on Intelligent Systems and Machine Learning Applications, [S. l.], v. 3, 2026. DOI: 10.4108/eetismla.12078. Disponível em: https://publications.eai.eu/index.php/ismla/article/view/12078. Acesso em: 11 jun. 2026.