Search Results for author: Ion Victor Gosea

Found 6 papers, 1 papers with code

Data-driven approximation and reduction from noisy data in matrix pencil frameworks

no code implementations19 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.

A framework for fitting quadratic-bilinear systems with applications to models of electrical circuits

no code implementations2 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.

Data-driven modeling and control of large-scale dynamical systems in the Loewner framework

no code implementations26 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.

Algorithms for the rational approximation of matrix-valued functions

1 code implementation13 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

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