Operator inference for non-intrusive model reduction with quadratic manifolds
This paper proposes a novel approach for learning a data-driven quadratic manifold from
high-dimensional data, then employing this quadratic manifold to derive efficient physics …
high-dimensional data, then employing this quadratic manifold to derive efficient physics …
Model reduction and neural networks for parametric PDEs
We develop a general framework for data-driven approximation of input-output maps
between infinitedimensional spaces. The proposed approach is motivated by the recent …
between infinitedimensional spaces. The proposed approach is motivated by the recent …
[HTML][HTML] POD-DL-ROM: Enhancing deep learning-based reduced order models for nonlinear parametrized PDEs by proper orthogonal decomposition
Deep learning-based reduced order models (DL-ROMs) have been recently proposed to
overcome common limitations shared by conventional reduced order models (ROMs)–built …
overcome common limitations shared by conventional reduced order models (ROMs)–built …
A review of advances towards efficient reduced-order models (ROM) for predicting urban airflow and pollutant dispersion
Computational fluid dynamics (CFD) models have been used for the simulation of urban
airflow and pollutant dispersion, due to their capability to capture different length scales and …
airflow and pollutant dispersion, due to their capability to capture different length scales and …
[HTML][HTML] A graph convolutional autoencoder approach to model order reduction for parametrized PDEs
The present work proposes a framework for nonlinear model order reduction based on a
Graph Convolutional Autoencoder (GCA-ROM). In the reduced order modeling (ROM) …
Graph Convolutional Autoencoder (GCA-ROM). In the reduced order modeling (ROM) …
Deep learning for reduced order modelling and efficient temporal evolution of fluid simulations
Reduced order modeling (ROM) has been widely used to create lower order,
computationally inexpensive representations of higher-order dynamical systems. Using …
computationally inexpensive representations of higher-order dynamical systems. Using …
[HTML][HTML] Multi-fidelity regression using artificial neural networks: Efficient approximation of parameter-dependent output quantities
Highly accurate numerical or physical experiments are often very time-consuming or
expensive to obtain. When time or budget restrictions prohibit the generation of additional …
expensive to obtain. When time or budget restrictions prohibit the generation of additional …
Lasdi: Parametric latent space dynamics identification
Enabling fast and accurate physical simulations with data has become an important area of
computational physics to aid in inverse problems, design-optimization, uncertainty …
computational physics to aid in inverse problems, design-optimization, uncertainty …
Neural-network-augmented projection-based model order reduction for mitigating the Kolmogorov barrier to reducibility
Inspired by our previous work on a quadratic approximation manifold [1], we propose in this
paper a computationally tractable approach for combining a projection-based reduced-order …
paper a computationally tractable approach for combining a projection-based reduced-order …
An artificial neural network approach to bifurcating phenomena in computational fluid dynamics
This work deals with the investigation of bifurcating fluid phenomena using a reduced order
modelling setting aided by artificial neural networks. We discuss the POD-NN approach …
modelling setting aided by artificial neural networks. We discuss the POD-NN approach …