Yue-Wei Fang

A score-based particle flow filter for non-Gaussian data assimilation in high-dimensional chaotic systems

Current particle flow filters rely on Gaussian prior assumptions that fail to capture the non-Gaussian attractor structure of chaotic systems. This study proposes a Score-based Particle Flow Filter (Score-PFF) that replaces the parametric prior gradient with a neural network-learned score function via denoising score m...