Development of a ground motion model for Taiwan using XGBoost and its implementation in seismic hazard assessment

This study utilizes the XGBoost model integrated with the Flatfile database, strong ground motion records derived from the Taiwan Strong Motion Instrumentation Program (TSMIP), to establish a crustal ground motion model (GMM) in forms of PGA, PGV, and spectral acceleration. When evaluating the performance of these models, particular attention is paid to the standard deviation of residuals and the R² score, as well as multiple analysis methods such as distance response, response spectra, and resi