Ihsan M, Zahnur, Fadlan I, Ikhsan Maulidi. Hybrid random forest–catboost ensemble for heart disease prediction on imbalanced datasets: Toward applications in military health systems. App.Sci.Def [Internet]. 2026 Apr. 30 [cited 2026 May 11];4(1):71-82. Available from: https://journal.foundae.com/index.php/JAS-ND/article/view/1148