Classification of Student Grading Using Naïve Bayes Method with Under-sampling Approach to Handle Imbalance. J. Inf. Syst. Explor. Res. [Internet]. 30 Tháng Giêng 2025 [cited 25 Tháng Tám 2026];3(1):39-44. Available at: https://shmpublisher.com/index.php/joiser/article/view/537