artificial intelligence artificial neural networks machine learning random forest uncertainty recurrent nonlinear autoregressive with exogenous inputs (RNARX) ANN GR4J model Generalized Likelihood Uncertainty Estimation (GLUE) GloFAS-Seasonal Hushan reservoir Internet of Things (IoT) LSTM Mahalanobis-Taguchi System NDVI Pareto-front optimal solution set Sequential Gaussian Simulation Snowmelt Runoff Model TOPSIS Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) Three Gorges Reservoir Unscented Kalman Filter Yangtze River Yarlung Zangbo River artificial neural network cascade hydropower reservoirs cascade reservoirs changing environments climate change impacts coupled models