Data-driven reduced order modeling for time-dependent problems

M Guo, JS Hesthaven - Computer methods in applied mechanics and …, 2019 - Elsevier
A data-driven reduced basis (RB) method for parametrized time-dependent problems is
proposed. This method requires the offline preparation of a database comprising the time …

An adaptive and efficient greedy procedure for the optimal training of parametric reduced‐order models

A Paul‐Dubois‐Taine… - International Journal for …, 2015 - Wiley Online Library
An adaptive and efficient approach for constructing reduced‐order models (ROMs) that are
robust to changes in parameters is developed. The approach is based on a greedy sampling …

Multifidelity surrogate based on single linear regression

Y Zhang, NH Kim, C Park, RT Haftka - AIAA Journal, 2018 - arc.aiaa.org
Multifidelity surrogates (MFS) combine low-fidelity models with few high-fidelity samples to
infer the response of the high-fidelity model for design optimization or uncertainty …

Error modeling for surrogates of dynamical systems using machine learning

S Trehan, KT Carlberg… - International Journal for …, 2017 - Wiley Online Library
A machine learning–based framework for modeling the error introduced by surrogate
models of parameterized dynamical systems is proposed. The framework entails the use of …

Time-series machine-learning error models for approximate solutions to parameterized dynamical systems

EJ Parish, KT Carlberg - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
This work proposes a machine-learning framework for modeling the error incurred by
approximate solutions to parameterized dynamical systems. In particular, we extend the …

Trajectory piecewise quadratic reduced-order model for subsurface flow, with application to PDE-constrained optimization

S Trehan, LJ Durlofsky - Journal of Computational Physics, 2016 - Elsevier
A new reduced-order model based on trajectory piecewise quadratic (TPWQ)
approximations and proper orthogonal decomposition (POD) is introduced and applied for …

Machine-learning error models for approximate solutions to parameterized systems of nonlinear equations

BA Freno, KT Carlberg - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
This work proposes a machine-learning framework for constructing statistical models of
errors incurred by approximate solutions to parameterized systems of nonlinear equations …

Error estimation of the parametric non-intrusive reduced order model using machine learning

D Xiao - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
A novel error estimation method for the parametric non-intrusive reduced order model (P-
NIROM) based on machine learning is presented. This method relies on constructing a set of …

Accurate solution of Bayesian inverse uncertainty quantification problems combining reduced basis methods and reduction error models

A Manzoni, S Pagani, T Lassila - SIAM/ASA Journal on Uncertainty …, 2016 - SIAM
Computational inverse problems related to partial differential equations (PDEs) often contain
nuisance parameters that cannot be effectively identified but still need to be considered as …

[PDF][PDF] Kernel methods for surrogate modeling

G Santin, B Haasdonk - System-and Data-Driven Methods and …, 2021 - library.oapen.org
This chapter deals with kernel methods as a special class of techniques for surrogate
modeling. Kernel methods have proven to be efficient in machine learning, pattern …