2026. A PSO-Optimized Stacking Ensemble with Hybrid SMOTE-NC and Tomek Links for Bid-Based Winning Prediction in Procurement Projects. Journal of Innovation and Technology Polbeng Series on Informatics (INOVTEK Polbeng - Seri Informatika). 11, 1 (Feb. 2026), 358–369. DOI:https://doi.org/10.35314/dft7w786.