Multifidelity deep operator networks for data-driven and physics-informed problems
Journal Article
·
· Journal of Computational Physics
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Brown Univ., Providence, RI (United States)
Operator learning for complex nonlinear systems is increasingly common in modeling multi-physics and multi-scale systems. However, training such high-dimensional operators requires a large amount of expensive, high-fidelity data, either from experiments or simulations. In this work, we present a composite Deep Operator Network (DeepONet) for learning using two datasets with different levels of fidelity to accurately learn complex operators when sufficient high-fidelity data is not available. Additionally, we demonstrate that the presence of low-fidelity data can improve the predictions of physics-informed learning with DeepONets. We demonstrate the new multi-fidelity training in diverse examples, including modeling of the ice-sheet dynamics of the Humboldt glacier, Greenland, using two different fidelity models and also using the same physical model at two different resolutions.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC)
- Grant/Contract Number:
- AC05-76RL01830; NA0003525
- OSTI ID:
- 2008415
- Alternate ID(s):
- OSTI ID: 2369182
- Report Number(s):
- PNNL-SA--172145
- Journal Information:
- Journal of Computational Physics, Journal Name: Journal of Computational Physics Vol. 493; ISSN 0021-9991
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
On the Training and Generalization of Deep Operator Networks
A hybrid deep neural operator/finite element method for ice-sheet modeling
Fed-DeepONet: Stochastic Gradient-Based Federated Training of Deep Operator Networks
Journal Article
·
Sun Jun 30 20:00:00 EDT 2024
· SIAM Journal on Scientific Computing
·
OSTI ID:2571744
A hybrid deep neural operator/finite element method for ice-sheet modeling
Journal Article
·
Thu Aug 17 20:00:00 EDT 2023
· Journal of Computational Physics
·
OSTI ID:1998151
Fed-DeepONet: Stochastic Gradient-Based Federated Training of Deep Operator Networks
Journal Article
·
Sun Sep 11 20:00:00 EDT 2022
· Algorithms
·
OSTI ID:1886960