"Roseanne Ramos,Alvin Christopher Varquez","Improving prediction of PM2.5 in Metro Manila using XGBoost with Optuna hyperparameter optimization","Philippine Geomatics Symposium (PhilGEOS) 2025","Improving prediction of PM2.5 in Metro Manila using XGBoost with Optuna hyperparameter optimization","Copernicus Publications","Volume X-5/W4-2025",,,2026,Feb. "Roseanne Ramos,Alvin Christopher Varquez,Maria Deandra Crisostomo Andal,Zeyu Chen,ATSUSHI INAGAKI,MANABU KANDA","MACHINE LEARNING-BASED REGRESSION MODELING FOR PREDICTING SURFACE PM2.5 IN KANTO REGION, JAPAN","20th National Convention of the Japan Heat Island Institute",,"Japan Heat Island Institute",,,,2025,Sept.