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Fachgruppe Computational Methods in Systems and Control Theory

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Fachgruppe Computational Methods in Systems and Control Theory
(Prof. Dr. Peter Benner)


Paper: Structure-preserving interpolation of bilinear control systems

11. Mai 2021
Structured bilinear interpolationThis paper by P. Benner (CSC), S. Gugercin (VT) and S. W. R. Werner (CSC) provides a framework for structure-preserving interpolation of regular subsystem transfer functions of structured bilinear control systems. It got published in Advances in Computational Mathematics.

Preprint: Discovery of Nonlinear Dynamical Systems using a Runge-Kutta Inspired Dictionary-based Sparse Regression Approach

11. Mai 2021
This work by Pawan Goyal (CSC) and Peter Benner (CSC) combines machine learning (dictionary-based) with a numerical integration scheme, namely a Runge-Kutta scheme to discover governing equations using corrupted and sparsely-sampled data. The method does not require the computation of derivative information to discover governing equations. Hence, it holds a key advantage when data are corrupted and sparsely sampled.

Paper: Learning Reduced order Dynamics for Parametrized Shallow Water Equations from Data

10. Mai 2021
This paper by Süleyman Yildiz (METU Ankara), Pawan Goyal (CSC), Peter Benner (CSC), and Bülent Karasözen (METU Ankara) discusses learning reduced models for parameterized shallow water equations using only data. The article is published in International Journal for Numerical Methods in Fluids.

Paper: Frequency- and time-limited balanced truncation for large-scale second-order systems

07. Mai 2021
Second-order limited MORThis paper by P. Benner (CSC) and S. W. R. Werner (CSC) extends the frequency- and time-limited balanced truncation methods to second-order systems and describes numerical tools for their application to large-scale sparse systems. It got published in Linear Algebra and its Applications.

Paper: Sustainable Research Software Hand-Over

30. April 2021
handoverDieser Artikel von J. Fehr (Uni Stuttgart), C. Himpe (CSC), S. Rave (WWU Münster) und J. Saak (CSC) strebt einen Bottom-up-Ansatz für nachhaltige Übergabeprozesse in der wissenschaftlichen Softwareentwicklung aus der Sicht eines Entwicklers an. Er wurde heute im Journal of Open Research Software veröffentlicht.

Die nächsten Seminarvorträge

Datum Vortragende(r) Titel
18.05.21 Christian Himpe & Petar Mlinarić & Jens Saak & Steffen Werner MOR Software (co-developed in the CSC group)
08.06.21 Alessandro Alla (PUC-Rio) TBA

Datum Vortragende(r) Titel
14.07.21 Team (MOR) A comprehensive deep learning-based approach to reduced order modeling of nonlinear time-dependent parametrized PDEs (Sridhar)
Deep convolutional recurrent autoencoders for learning low-dimensional feature dynamics of fluid systems (Harshit)
29.09.21 Team (tba) (tba)

Jens Saak,