Deep operator networks for Bayesian parameter estimation in PDEs
Year: 2025
Type: article
Abstract: We present a novel framework combining Deep Operator Networks (DeepONets) with Physics-Informed Neural Networks (PINNs) to solve partial differential equations (PDEs) while estimating their unknown parameters. By integrating data-driven learning with physical constraints, our method achieves robust and accurate solutions across diverse scenarios. Bayesian training is implemented through variational inference, allowing for comprehensive uncertainty quantification for both data and model uncertainties. This ensures reliable prediction and parameter estimates even in noisy conditions or when some of the physical equations governing the problem are missing. The framework demonstrates its efficacy in solving forward and inverse problems, including the 1D unsteady heat equation, 2D reaction-diffusion equations, 3D eigenvalue problem, and various regression tasks with sparse, noisy observations. This approach provides a computationally efficient and generalizable method for addressing uncertainty quantification in PDE surrogate modeling. • Deep Bayesian Operator Nets solve PDEs while jointly learning unknown parameters. • Physics-guided machine learning method improves robustness and accuracy. • Variational inference yields uncertainty over models, parameters, outputs. • Reliable under noise and complex boundary/initial conditions. • Applicable to forward/inverse PDEs and general regression tasks.
Source: Computer Physics Communications
Authors: Amogh Raj, Sakol Bun, Keerthana Srinivasa, Carol Eunice Gudumotou, Arash Sarshar
Institution: California State University, Long Beach
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,160
Awards: Track 4: Advanced CI Coordination Ecosystem: Monitoring and Measurement Services, G351461614, Track 1: ACCESS Resource Allocations Marketplace and Platform Services (RAMPS), ACO: An Open CI Ecosystem to Advance Scientific Discovery (OpenCI), Track 3: COre National Ecosystem for CyberinfrasTructure (CONECT), Track 2: Customized Multi-tier Assistance, Training, and Computational Help (MATCH) for End User ACCESS to CI
OpenAlex ID: W7081918157