Special Session 107: Recent Advances in Data Assimilation with Machine Learning

Efficient Derivative-Free Bayesian Inference for Large-Scale Inverse Problems

Daniel Zhengyu Huang
Peking University
Peoples Rep of China
Co-Author(s):    
Abstract:
We consider Bayesian inference for large-scale inverse problems, where computational challenges arise from the need for repeated evaluations of an expensive forward model, which is often given as a black box or is impractical to differentiate. We propose a framework, which is built on Kalman methodology and Fisher-Rao Gradient flow, to efficiently calibrate and provide uncertainty estimations of such models with noisy observation data.