Syamroni, G. M., Imran, B., Surni Erniwati, Zaeniah and Wenti Ayu Wahyuni (2026) “A Leakage-Aware Ensemble Framework for Imbalanced Tabular Data: Mitigating SMOTE Contamination in Hotel Cancellation Prediction”, Journal Computer and Technology, 4(1), pp. 29–47. doi: 10.69916/comtechno.v4i1.514.