Afuan, L., Hidayat, N. and Karim, A. 2026. RoBERTa with Sample Reweighting and Temperature Scaling for Imbalanced Toxicity Detection: A Performance–Fairness–Calibration Study. International Journal of Machine Learning (IJOML). 1, 1 (Jan. 2026), 23–37. DOI:https://doi.org/10.66472/ijoml.v1i1.3.