[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 …

[HTML][HTML] Uncertainty quantification for nonlinear solid mechanics using reduced order models with Gaussian process regression

L Cicci, S Fresca, M Guo, A Manzoni… - Computers & Mathematics …, 2023 - Elsevier
Uncertainty quantification (UQ) tasks, such as sensitivity analysis and parameter estimation,
entail a huge computational complexity when dealing with input-output maps involving the …

[HTML][HTML] Nonlinear model order reduction for problems with microstructure using mesh informed neural networks

P Vitullo, A Colombo, NR Franco, A Manzoni… - Finite Elements in …, 2024 - Elsevier
Many applications in computational physics involve approximating problems with
microstructure, characterized by multiple spatial scales in their data. However, these …

[HTML][HTML] Learning constitutive models from microstructural simulations via a non-intrusive reduced basis method

T Guo, O Rokoš, K Veroy - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
In order to optimally design materials, it is crucial to understand the structure–property
relations in the material by analyzing the effect of microstructure parameters on the …

Deep learning enhanced cost-aware multi-fidelity uncertainty quantification of a computational model for radiotherapy

P Vitullo, NR Franco, P Zunino - arXiv preprint arXiv:2402.08494, 2024 - arxiv.org
Forward uncertainty quantification (UQ) for partial differential equations is a many-query task
that requires a significant number of model evaluations. The objective of this work is to …

[HTML][HTML] Investigation of physics-informed deep learning for the prediction of parametric, three-dimensional flow based on boundary data

P Heger, D Hilger, M Full, N Hosters - Computers & Fluids, 2024 - Elsevier
The placement of temperature sensitive and safety-critical components is crucial in the
automotive industry. It is therefore inevitable, even at the design stage of new vehicles, that …

Digital twin temperature field prediction of laser powder bed fusion through proper orthogonal decomposition with radial basis function

X Peng, Z Chen, A Zhang, X Chen, Y Zhang - Materials Today …, 2024 - Elsevier
Digital Twin framework, integrated with in-situ sensing and physical simulation, can
significantly improve process productivity and product quality of Laser Powder Bed Fusion …

Conditional variational autoencoder with Gaussian process regression recognition for parametric models

X Zhang, L Jiang - Journal of Computational and Applied Mathematics, 2024 - Elsevier
In this article, we present a data-driven method for parametric models with noisy observation
data. Gaussian process regression based reduced order modeling (GPR-based ROM) can …

Predicting output responses of nonlinear dynamical systems with parametrized inputs using LSTM

L Feng - IEEE Journal on Multiscale and Multiphysics …, 2023 - ieeexplore.ieee.org
Long Short-Term Memory (LSTM) has been more and more used to predict time evolution of
dynamics for many problems, especially the fluid dynamics. Usually, it is applied to the latent …

An efficient reduced order model for nonlinear transient porous media flow with time-varying injection rates

SH Ardakani, G Zingaro, M Komijani… - Finite Elements in Analysis …, 2024 - Elsevier
Abstract An intrusive Reduced Order Model (ROM) is developed for nonlinear porous media
flow problems with transient and time-discontinuous fluid injection rates. The proposed ROM …