Reduced basis methods for time-dependent problems
Numerical simulation of parametrized differential equations is of crucial importance in the
study of real-world phenomena in applied science and engineering. Computational methods …
study of real-world phenomena in applied science and engineering. Computational methods …
[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) …
Crom: Continuous reduced-order modeling of pdes using implicit neural representations
The long runtime of high-fidelity partial differential equation (PDE) solvers makes them
unsuitable for time-critical applications. We propose to accelerate PDE solvers using …
unsuitable for time-critical applications. We propose to accelerate PDE solvers using …
Neural Galerkin schemes with active learning for high-dimensional evolution equations
Deep neural networks have been shown to provide accurate function approximations in high
dimensions. However, fitting network parameters requires informative training data that are …
dimensions. However, fitting network parameters requires informative training data that are …
Breaking the Kolmogorov barrier with nonlinear model reduction
B Peherstorfer - Notices of the American Mathematical Society, 2022 - ams.org
Model reduction is ubiquitous in computational science and engineering. It plays a key role
in making computationally tractable outer-loop applications that require simulating systems …
in making computationally tractable outer-loop applications that require simulating systems …
Symplectic model reduction of Hamiltonian systems on nonlinear manifolds and approximation with weakly symplectic autoencoder
Classical model reduction techniques project the governing equations onto linear
subspaces of the high-dimensional state-space. For problems with slowly decaying …
subspaces of the high-dimensional state-space. For problems with slowly decaying …
[BUCH][B] Advanced reduced order methods and applications in computational fluid dynamics
Reduced order modeling is an important and fast-growing research field in computational
science and engineering, motivated by several reasons, of which we mention just a few …
science and engineering, motivated by several reasons, of which we mention just a few …
[HTML][HTML] Non-intrusive data-driven reduced-order modeling for time-dependent parametrized problems
Reduced-order models are indispensable for multi-query or real-time problems. However,
there are still many challenges to constructing efficient ROMs for time-dependent …
there are still many challenges to constructing efficient ROMs for time-dependent …
Rank-adaptive structure-preserving model order reduction of Hamiltonian systems
This work proposes an adaptive structure-preserving model order reduction method for finite-
dimensional parametrized Hamiltonian systems modeling non-dissipative phenomena. To …
dimensional parametrized Hamiltonian systems modeling non-dissipative phenomena. To …
A registration method for reduced basis problems using linear optimal transport
T Blickhan - SIAM Journal on Scientific Computing, 2024 - SIAM
We present a registration method for model reduction of parametric partial differential
equations with dominating advection effects and moving features. Registration refers to the …
equations with dominating advection effects and moving features. Registration refers to the …