A Novel Optimized Hybrid VMD-PCA-XGBoost Model for Forecasting Precipitation: Exemplified by the Beijing-Tianjin-Hebei Study Region in China. - Qiaoli Kong; Qian Li; Qi Bai; Xiaolong Mi; Joseph L. Awange; Shi Wang; Yi Yang; Guoli Bo (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2025)