POD-enhanced deep learning-based reduced order models for the real-time simulation of cardiac electrophysiology in the left atrium

S Fresca, A Manzoni, L Dedè, A Quarteroni - Frontiers in physiology, 2021 - frontiersin.org
The numerical simulation of multiple scenarios easily becomes computationally prohibitive
for cardiac electrophysiology (EP) problems if relying on usual high-fidelity, full order models …

On optimal pointwise in time error bounds and difference quotients for the proper orthogonal decomposition

B Koc, S Rubino, M Schneier, J Singler, T Iliescu - SIAM Journal on Numerical …, 2021 - SIAM
In this paper, we resolve several long-standing issues dealing with optimal pointwise in time
error bounds for proper orthogonal decomposition (POD) reduced order modeling of the …

A finite element reduced-dimension method for viscoelastic wave equation

Z Luo - Mathematics, 2022 - mdpi.com
In this study, we mainly employ a proper orthogonal decomposition (POD) to lower the
dimension for the unknown Crank–Nicolson finite element (FE)(CNFE) solution coefficient …

Resolving high frequency issues via proper orthogonal decomposition based dynamic isogeometric analysis for structures with dissimilar materials

C Ding, RR Deokar, H Lian, Y Ding, G Li, X Cui… - Computer Methods in …, 2020 - Elsevier
After space discretization employing traditional dynamic isogeometric analysis of structures
(composite type) with/without dissimilar materials, the issues that persist include either using …

Certified real‐time shape optimization using isogeometric analysis, PGD model reduction, and a posteriori error estimation

L Chamoin, HP Thai - International Journal for Numerical …, 2019 - Wiley Online Library
In this paper, we address the effective and accurate solution of problems with parameterized
geometry. Considering the attractive framework of isogeometric analysis, which enables a …

Reduced order isogeometric analysis approach for pdes in parametrized domains

F Garotta, N Demo, M Tezzele, M Carraturo… - … of Uncertainty: Improving …, 2020 - Springer
In this contribution, we coupled the isogeometric analysis to a reduced order modelling
technique in order to provide a computationally efficient solution in parametric domains. In …

Isogeometric analysis and proper orthogonal decomposition for the acoustic wave equation

S Zhu, L Dedè, A Quarteroni - ESAIM: Mathematical Modelling and …, 2017 - numdam.org
Discretization methods such as finite differences or finite elements were usually employed to
provide high fidelity solution approximations for reduced order modeling of parameterized …

The Reference Point Method, a “hyperreduction” technique: Application to PGD-based nonlinear model reduction

M Capaldo, PA Guidault, D Néron… - Computer Methods in …, 2017 - Elsevier
A new approximation technique, called Reference Point Method (RPM), is proposed in order
to reduce the computational complexity of algebraic operations for constructing reduced …

Proper orthogonal decomposition with SUPG-stabilized isogeometric analysis for reduced order modelling of unsteady convection-dominated convection-diffusion …

R Li, Q Wu, S Zhu - Journal of Computational Physics, 2019 - Elsevier
We consider reduced order modelling of unsteady convection-dominated convection-
diffusion-reaction problems with proper orthogonal decomposition (POD) in combination …

Proper orthogonal decomposition method to nonlinear filtering problems in medium-high dimension

Z Wang, X Luo, SST Yau… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, we investigate the proper orthogonal decomposition (POD) method to
numerically solve the forward Kolmogorov equation (FKE). Our method aims to explore the …