Operator learning using random features: A tool for scientific computing

NH Nelsen, AM Stuart - SIAM Review, 2024 - SIAM
Supervised operator learning centers on the use of training data, in the form of input-output
pairs, to estimate maps between infinite-dimensional spaces. It is emerging as a powerful …

Deep learning-based surrogate models for parametrized PDEs: Handling geometric variability through graph neural networks

NR Franco, S Fresca, F Tombari… - … Interdisciplinary Journal of …, 2023 - pubs.aip.org
Mesh-based simulations play a key role when modeling complex physical systems that, in
many disciplines across science and engineering, require the solution to parametrized time …

Efficient approximation of cardiac mechanics through reduced‐order modeling with deep learning‐based operator approximation

L Cicci, S Fresca, A Manzoni… - International Journal for …, 2024 - Wiley Online Library
Reducing the computational time required by high‐fidelity, full‐order models (FOMs) for the
solution of problems in cardiac mechanics is crucial to allow the translation of patient …

A practical existence theorem for reduced order models based on convolutional autoencoders

NR Franco, S Brugiapaglia - arXiv preprint arXiv:2402.00435, 2024 - arxiv.org
In recent years, deep learning has gained increasing popularity in the fields of Partial
Differential Equations (PDEs) and Reduced Order Modeling (ROM), providing domain …

On the latent dimension of deep autoencoders for reduced order modeling of PDEs parametrized by random fields

NR Franco, D Fraulin, A Manzoni, P Zunino - Advances in Computational …, 2024 - Springer
Deep Learning is having a remarkable impact on the design of Reduced Order Models
(ROMs) for Partial Differential Equations (PDEs), where it is exploited as a powerful tool for …

Real-time optimal control of high-dimensional parametrized systems by deep learning-based reduced order models

M Tomasetto, A Manzoni, F Braghin - arXiv preprint arXiv:2409.05709, 2024 - arxiv.org
Steering a system towards a desired target in a very short amount of time is challenging from
a computational standpoint. Indeed, the intrinsically iterative nature of optimal control …

PTPI-DL-ROMs: pre-trained physics-informed deep learning-based reduced order models for nonlinear parametrized PDEs

S Brivio, S Fresca, A Manzoni - arXiv preprint arXiv:2405.08558, 2024 - arxiv.org
The coupling of Proper Orthogonal Decomposition (POD) and deep learning-based ROMs
(DL-ROMs) has proved to be a successful strategy to construct non-intrusive, highly …

On latent dynamics learning in nonlinear reduced order modeling

N Farenga, S Fresca, S Brivio, A Manzoni - arXiv preprint arXiv …, 2024 - arxiv.org
In this work, we present the novel mathematical framework of latent dynamics models
(LDMs) for reduced order modeling of parameterized nonlinear time-dependent PDEs. Our …

Deep orthogonal decomposition: a continuously adaptive data-driven approach to model order reduction

NR Franco, A Manzoni, P Zunino… - arXiv preprint arXiv …, 2024 - arxiv.org
We develop a novel deep learning technique, termed Deep Orthogonal Decomposition
(DOD), for dimensionality reduction and reduced order modeling of parameter dependent …

Handling geometrical variability in nonlinear reduced order modeling through Continuous Geometry-Aware DL-ROMs

S Brivio, S Fresca, A Manzoni - arXiv preprint arXiv:2411.05486, 2024 - arxiv.org
Deep Learning-based Reduced Order Models (DL-ROMs) provide nowadays a well-
established class of accurate surrogate models for complex physical systems described by …