@article{CTT100942575, author = {Roseanne Ramos and Alvin Christopher Varquez}, title = {Improving prediction of PM2.5 in Metro Manila using XGBoost with Optuna hyperparameter optimization}, journal = {ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences}, year = 2026, } @inproceedings{CTT100944739, author = {Roseanne Ramos and Mark Joseph Calubad and Alvin Christopher Varquez}, title = {Evaluating different satellite-based Aerosol Optical Depth (AOD) in predicting inland daytime PM2.5 using machine learning-based regression approach}, booktitle = {The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences}, year = 2026, } @inproceedings{CTT100944740, author = {Roseanne Ramos and Alvin Christopher Varquez and Maria Deandra Crisostomo Andal and Zeyu Chen and Atsushi Inagaki and Manabu Kanda}, title = {Modeling of near-surface PM2.5 using machine learning regression informed by a chemistry transport model: A case study in Kanto Region, Japan}, booktitle = {JpGU-AGU Joint Meeting 2026}, year = 2026, } @inproceedings{CTT100942577, author = {Roseanne Ramos and Alvin Christopher Galang Varquez}, title = {Improving prediction of PM2.5 in Metro Manila using XGBoost with Optuna hyperparameter optimization}, booktitle = {}, year = 2025, } @inproceedings{CTT100941676, author = {Zeyu CHEN and Maria Deandra ANDAL and Roseanne RAMOS and Alvin Christopher Galang VARQUEZ and Mizuo KAJINO and Prabir Kumar PATRA and Masayuki TAKIGAWA and Paul GRIFFITHS and Manabu KANDA and Natsumi KAWANO and Akio YAMAGAMI and Quang-Van DOAN}, title = {Investigating Anthropogenic Factors Influencing Kanto’s Localized Heavy Rainfall}, booktitle = {}, year = 2025, } @inproceedings{CTT100940874, author = {Roseanne Ramos and Alvin Christopher Varquez and Maria Deandra Crisostomo Andal and Zeyu Chen and ATSUSHI INAGAKI and MANABU KANDA}, title = {MACHINE LEARNING-BASED REGRESSION MODELING FOR PREDICTING SURFACE PM2.5 IN KANTO REGION, JAPAN}, booktitle = {}, year = 2025, } @inproceedings{CTT100941677, author = {Zeyu CHEN and Alvin Christopher Galang VARQUEZ and Maria Deandra ANDAL and Roseanne RAMOS and Mizuo KAJINO and Prabir Kumar PATRA and Masayuki TAKIGAWA and Paul GRIFFITHS and Manabu KANDA and Natsumi KAWANO and Akio YAMAGAMI and Quang-Van DOAN}, title = {INVESTIGATING ANTHROPOGENIC FACTORS INFLUENCING KANTO’S LOCALIZED HEAVY RAINFALL}, booktitle = {}, year = 2025, }