Learning nonlinear reduced models from data with operator inference

B Kramer, B Peherstorfer… - Annual Review of Fluid …, 2024 - annualreviews.org
This review discusses Operator Inference, a nonintrusive reduced modeling approach that
incorporates physical governing equations by defining a structured polynomial form for the …

[HTML][HTML] Improving aircraft performance using machine learning: A review

S Le Clainche, E Ferrer, S Gibson, E Cross… - Aerospace Science and …, 2023 - Elsevier
This review covers the new developments in machine learning (ML) that are impacting the
multi-disciplinary area of aerospace engineering, including fundamental fluid dynamics …

Model reduction and neural networks for parametric PDEs

K Bhattacharya, B Hosseini, NB Kovachki… - The SMAI journal of …, 2021 - numdam.org
We develop a general framework for data-driven approximation of input-output maps
between infinitedimensional spaces. The proposed approach is motivated by the recent …

Hybrid physics-based and data-driven models for smart manufacturing: Modelling, simulation, and explainability

J Wang, Y Li, RX Gao, F Zhang - Journal of Manufacturing Systems, 2022 - Elsevier
To overcome the limitations associated with purely physics-based and data-driven modeling
methods, hybrid, physics-based data-driven models have been developed, with improved …

Learning physics-based models from data: perspectives from inverse problems and model reduction

O Ghattas, K Willcox - Acta Numerica, 2021 - cambridge.org
This article addresses the inference of physics models from data, from the perspectives of
inverse problems and model reduction. These fields develop formulations that integrate data …

Quadratic approximation manifold for mitigating the Kolmogorov barrier in nonlinear projection-based model order reduction

J Barnett, C Farhat - Journal of Computational Physics, 2022 - Elsevier
A quadratic approximation manifold is presented for performing nonlinear, projection-based,
model order reduction (PMOR). It constitutes a departure from the traditional affine subspace …

Lasdi: Parametric latent space dynamics identification

WD Fries, X He, Y Choi - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
Enabling fast and accurate physical simulations with data has become an important area of
computational physics to aid in inverse problems, design-optimization, uncertainty …

Predictive reduced order modeling of chaotic multi-scale problems using adaptively sampled projections

C Huang, K Duraisamy - Journal of Computational Physics, 2023 - Elsevier
An adaptive projection-based reduced-order model (ROM) formulation is presented for
model-order reduction of problems featuring chaotic and convection-dominant physics. An …

Operator inference for non-intrusive model reduction with quadratic manifolds

R Geelen, S Wright, K Willcox - Computer Methods in Applied Mechanics …, 2023 - Elsevier
This paper proposes a novel approach for learning a data-driven quadratic manifold from
high-dimensional data, then employing this quadratic manifold to derive efficient physics …

Bayesian operator inference for data-driven reduced-order modeling

M Guo, SA McQuarrie, KE Willcox - Computer Methods in Applied …, 2022 - Elsevier
This work proposes a Bayesian inference method for the reduced-order modeling of time-
dependent systems. Informed by the structure of the governing equations, the task of …