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Reduced Order and Surrogate Modeling for Digital Twins
Amortized Full-Waveform Inference with learned Summary Statistics
Felix Herrmann, Georgia Institute of Technology
Monday, November 10, 2025
Abstract: During this talk, I will discuss different Bayesian inference techniques we have developed in my group. The problem of Full-Waveform Inference is challenged by the large degrees of freedom, the expensive to evaluate forward operators, and the presence of parasitic local minima. In an effort to meet these challenges, we combine techniques from amortized simulation-based inference, generative models, and a hybrid of physics-based learned summary statistics. Our approach not only reduces dimensionality of the seismic data but it also simplifies the model-to-summarized data mapping while preserving information, so the posterior distribution remains informed.