Smart Ensemble Learning Framework for Predicting Groundwater Heavy Metal Pollution. - Theophilus Ansah-Narh; George Yamoah Afrifa; Joseph Bremang Tandoh; K. Asare; M. Addi; Kow Ahor Essel-Yorke; D. M. A. Akpoley; K. Aidoo; S. K. Fosuhene (CoRR, 2026)