Munti, N.Y.S. et al. 2026. An Optimized Heterogeneous Stacking Ensemble with Hyperparameter Optimization for Multi Class Hypertension Risk Classification. International Journal of Advances in Data and Information Systems. 7, 2 (Aug. 2026), 847–862. DOI:https://doi.org/10.59395/ijadis.v7i2.1637.