Four Grade Levels-Based Models with Random Forest for Student Performance Prediction at a Multidisciplinary University. - Tran Thanh Dien; Le Duy-Anh; Nguyen Hong-Phat; Nguyen Van-Tuan; Trinh Thanh-Chanh; Le Minh-Bang; Hai Thanh Nguyen 003; Nguyen Thai-Nghe (CISIS, 2021)