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Research Group Computational Methods in Systems and Control Theory

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


Paper: Structure-preserving interpolation of bilinear control systems

May 11, 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

May 11, 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

May 10, 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

May 07, 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

April 30, 2021
handoverThis paper by J. Fehr (Uni Stuttgart), C. Himpe (CSC), S. Rave (WWU Münster) and J. Saak (CSC) intends to be a bottom-up approach for sustainable hand-over processes in scientific software development from a developer’s perspective. It got published in the Journal of Open Research Software today.

Upcoming seminar talks

Date Speaker(s) Title
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

Date Speaker(s) Title
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, saak@mpi-magdeburg.mpg.de