Sembiring, I. et al. 2026. A Hybrid ARIMA–LSTM Model Optimized with a Tree-Structured Parzen Estimator for Automatic Hyperparameter Tuning to Forecast Indonesia’s Chili and Climate Data. Engineering, Technology & Applied Science Research. 16, 3 (Jun. 2026), 35477–35490. DOI:https://doi.org/10.48084/etasr.15911.