no code implementations • 27 Feb 2024 • Ion Victor Gosea, Luisa Peterson, Pawan Goyal, Jens Bremer, Kai Sundmacher, Peter Benner
In this work, we address the challenge of efficiently modeling dynamical systems in process engineering.
no code implementations • 19 Feb 2022 • Pauline Kergus, Ion Victor Gosea
This work aims at tackling the problem of learning surrogate models from noisy time-domain data by means of matrix pencil-based techniques, namely the Hankel and Loewner frameworks.
no code implementations • 2 Dec 2021 • Dimitrios S. Karachalios, Ion Victor Gosea, Athanasios C. Antoulas
In this contribution, we propose a data-driven procedure to fit quadratic-bilinear surrogate models from data.
no code implementations • 26 Aug 2021 • Ion Victor Gosea, Charles Poussot-Vassal, Athanasios C. Antoulas
In this contribution, we discuss the modeling and model reduction framework known as the Loewner framework.
no code implementations • 21 Apr 2021 • Ion Victor Gosea, Mihaly Petreczky, Athanasios C. Antoulas
We propose a model reduction method for LPV systems.
1 code implementation • 13 Mar 2020 • Ion Victor Gosea, Stefan Güttel
A selection of algorithms for the rational approximation of matrix-valued functions are discussed, including variants of the interpolatory AAA method, the RKFIT method based on approximate least squares fitting, vector fitting, and a method based on low-rank approximation of a block Loewner matrix.
Numerical Analysis Numerical Analysis 41A20, 65D15