[HTML][HTML] POD-DL-ROM: Enhancing deep learning-based reduced order models for nonlinear parametrized PDEs by proper orthogonal decomposition

S Fresca, A Manzoni - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
Deep learning-based reduced order models (DL-ROMs) have been recently proposed to
overcome common limitations shared by conventional reduced order models (ROMs)–built …

A comprehensive deep learning-based approach to reduced order modeling of nonlinear time-dependent parametrized PDEs

S Fresca, L Dede', A Manzoni - Journal of Scientific Computing, 2021 - Springer
Conventional reduced order modeling techniques such as the reduced basis (RB) method
(relying, eg, on proper orthogonal decomposition (POD)) may incur in severe limitations …

Multi-fidelity surrogate modeling using long short-term memory networks

P Conti, M Guo, A Manzoni, JS Hesthaven - Computer methods in applied …, 2023 - Elsevier
When evaluating quantities of interest that depend on the solutions to differential equations,
we inevitably face the trade-off between accuracy and efficiency. Especially for …

[BOOK][B] Mathematical modelling of the human cardiovascular system: data, numerical approximation, clinical applications

A Quarteroni, A Manzoni, C Vergara - 2019 - books.google.com
Mathematical and numerical modelling of the human cardiovascular system has attracted
remarkable research interest due to its intrinsic mathematical difficulty and the increasing …

[HTML][HTML] Reduced order modeling of parametrized systems through autoencoders and SINDy approach: continuation of periodic solutions

P Conti, G Gobat, S Fresca, A Manzoni… - Computer Methods in …, 2023 - Elsevier
Highly accurate simulations of complex phenomena governed by partial differential
equations (PDEs) typically require intrusive methods and entail expensive computational …

Polygonal surface processing and mesh generation tools for the numerical simulation of the cardiac function

M Fedele, A Quarteroni - International Journal for Numerical …, 2021 - Wiley Online Library
In order to simulate the cardiac function for a patient‐specific geometry, the generation of the
computational mesh is crucially important. In practice, the input is typically a set of …

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 …

Deep learning-based reduced order models in cardiac electrophysiology

S Fresca, A Manzoni, L Dedè, A Quarteroni - PloS one, 2020 - journals.plos.org
Predicting the electrical behavior of the heart, from the cellular scale to the tissue level, relies
on the numerical approximation of coupled nonlinear dynamical systems. These systems …

[HTML][HTML] Approximation bounds for convolutional neural networks in operator learning

NR Franco, S Fresca, A Manzoni, P Zunino - Neural Networks, 2023 - Elsevier
Abstract Recently, deep Convolutional Neural Networks (CNNs) have proven to be
successful when employed in areas such as reduced order modeling of parametrized PDEs …

Deep-HyROMnet: A deep learning-based operator approximation for hyper-reduction of nonlinear parametrized PDEs

L Cicci, S Fresca, A Manzoni - Journal of Scientific Computing, 2022 - Springer
To speed-up the solution of parametrized differential problems, reduced order models
(ROMs) have been developed over the years, including projection-based ROMs such as the …