[HTML][HTML] Model reduction on manifolds: A differential geometric framework

P Buchfink, S Glas, B Haasdonk, B Unger - Physica D: Nonlinear …, 2024 - Elsevier
Using nonlinear projections and preserving structure in model order reduction (MOR) are
currently active research fields. In this paper, we provide a novel differential geometric …

Nonlinear model reduction from equations and data

C Pagliantini, S Jain - Chaos: An Interdisciplinary Journal of Nonlinear …, 2024 - pubs.aip.org
Modeling in applied science and engineering targets increasingly ambitious objectives,
which typically yield increasingly complex models. Despite major advances in computations …

Nonparametric Control-Koopman Operator Learning: Flexible and Scalable Models for Prediction and Control

P Bevanda, B Driessen, LC Iacob, R Toth… - arxiv preprint arxiv …, 2024 - arxiv.org
Linearity of Koopman operators and simplicity of their estimators coupled with model-
reduction capabilities has lead to their great popularity in applications for learning dynamical …

Data-driven model reduction via non-intrusive optimization of projection operators and reduced-order dynamics

A Padovan, B Vollmer, DJ Bodony - SIAM Journal on Applied Dynamical …, 2024 - SIAM
Computing reduced-order models using non-intrusive methods is particularly attractive for
systems that are simulated using black-box solvers. However, obtaining accurate data …

An adaptive learning strategy for surrogate modeling of high-dimensional functions-Application to unsteady hypersonic flows in chemical nonequilibrium

C Scherding, G Rigas, D Sipp, PJ Schmid… - Computer Physics …, 2025 - Elsevier
Many engineering applications rely on the evaluation of expensive, non-linear high-
dimensional functions. In this paper, we propose the RONAALP algorithm (Reduced Order …

Machine learning in viscoelastic fluids via energy-based kernel embedding

SE Otto, CM Oishi, FVG Amaral, SL Brunton… - Journal of Computational …, 2024 - Elsevier
The ability to measure differences in collected data is of fundamental importance for
quantitative science and machine learning, motivating the establishment of metrics …

Data-driven identification of latent port-Hamiltonian systems

J Rettberg, J Kneifl, J Herb, P Buchfink, J Fehr… - arxiv preprint arxiv …, 2024 - arxiv.org
Conventional physics-based modeling techniques involve high effort, eg, time and expert
knowledge, while data-driven methods often lack interpretability, structure, and sometimes …

Entropy-stable model reduction of one-dimensional hyperbolic systems using rational quadratic manifolds

R Klein, B Sanderse, P Costa, R Pecnik… - arxiv preprint arxiv …, 2024 - arxiv.org
In this work we propose a novel method to ensure important entropy inequalities are
satisfied semi-discretely when constructing reduced order models (ROMs) on nonlinear …

A multi-task learning framework for aerodynamic computation of two-dimensional airfoils

C Chen, B Zhang, H Huang, Z **e, C Yang, D Meng… - Physics of …, 2024 - pubs.aip.org
Accurate and efficient prediction of airfoil aerodynamic coefficients is essential for improving
aircraft performance. However, current research often encounters significant challenges in …

Reconstructing attractors with autoencoders

F Fainstein, GB Mindlin, P Groisman - Chaos: An Interdisciplinary …, 2025 - pubs.aip.org
We propose a method based on autoencoders to reconstruct attractors from recorded
footage, preserving the topology of the underlying phase space. We provide theoretical …