Sadri F, Mohamadi AS, Gholami A. A Comparative Analysis of XGBoost and DNN in Online Payment Fraud Detection under Extreme Class Imbalance: A Cost-Sensitive Optimization Approach Based on the F3-Score. BMF OPEN [Internet]. 2026 May 16 [cited 2026 Jun. 10];:1-15. Available from: https://www.bmfopen.com/index.php/bmfopen/article/view/446