Gymnastiar, M. F., D. F. Shiddieq, and F. F. Roji. “Optimasi Hyperparameter XGBoost Menggunakan Particle Swarm Dan Grey Wolf Optimization Untuk Prediksi Churn: XGBoost Hyperparameter Optimization Using Particle Swarm and Grey Wolf Optimization for Churn Prediction”. MALCOM: Indonesian Journal of Machine Learning and Computer Science, vol. 6, no. 4, Oct. 2026, pp. 2255-66, doi:10.57152/malcom.v6i4.3049.