AbdulAbbas, A.M., Alkanany, R., Al-Nuaimi, Y.A.K. and Al-Hamdawee, Z.M.A. 2025. A Sequential Data Preprocessing Pipeline for Diabetes Prediction: A Data Leakage Prevention and Dual-Validation Approach. Engineering, Technology & Applied Science Research. 15, 6 (Dec. 2025), 30059–30066. DOI:https://doi.org/10.48084/etasr.14155.