• Multiobjective optimization and optimal control
  • Acceleration of algorithms by structure exploitation
  • Applications in the area of machine learning (e.g., sparse regression & neural network training)
  • Real-time applicability in combination with model predictive control
  • Solution of PDE constrained problems using model order reduction
     
• Model reduction of complex systems, in particular PDEs, using
  • Proper Orthogonal Decomposition (POD)
  • Koopman Operator-based approaches
  • Machine Learning
     
• Data-driven optimization and control of complex systems, in particular fluid flows
   
• Optimization methods for efficiency increasements of machine learning algorithms

GAMM Jahrestagung 2023
30.05. - 02.06.2023, Dresden, Germany

SIAM Conference on Applications of Dynamical Systems
14.05. - 18.05.2023, Portland, Oregon, USA

SIAM Conference on Computational Science and Engineering
26.02. - 03.03.2023, Amsterdam, Netherlands

10th Vienna International Conference on Mathematical Modelling (MATHMOD)
27.07. - 29.07.2022, Vienna, Austria
“Error estimates for data-driven optimal control by leveraging results for autonomous systems”

8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS)
05.06. - 09.06.2022, Oslo, Norway
“Efficient data-driven control of fluids using autonomous surrogate models”

DeepTurb project meeting
05.10 - 06.10.2021, Warnemünde, Germany
"Efficient data-driven prediction and control of complex systems using the Koopman operator''

SIAM Conference on Control and Its Applications
19.07. - 21.07.2021, Spokane, WA, USA
"On the universal transformation of data-driven models to control systems"

Inaugural seminar on ``Data-driven Methods in Control'' (organized by the IFAC TC on Optimal Control) (Video)
08.07.2021, online
"On the universal transformation of data-driven models to control systems"

SIAM Conference on Applications of Dynamical Systems
23.05. - 27.05.2021, virtual conference
"On the universal transformation of data-driven models to control systems"

Mini-Workshop: Analysis of Data-driven Optimal Control
10.05. - 14.05.2021, Oberwolfach Research Institute for Mathematics
"On the universal transformation of data-driven models to control systems"

Machine Learning and Dynamical Systems Seminar
10.02.2021, virtual presentation
"On the universal transformation of data-driven models to control systems" (Video)

University of Rostock Seminar talk
24.06.2020 - University of Rostock, Germany
"Data driven feedback control of nonlinear PDEs using POD and the Koopman operator"

Workshop on Optimal Control
02.12. - 03.12.2019 - University of Konstanz, Germany
"The Koopman Operator in PDE-Constrained Optimal Control"

103rd Meeting of the GOR Working Group "Real World Optimization" on "Multicriteria Optimization and Decision Support in Industry"
21.11. - 22.11.2019 - Fraunhofer ITWM, Kaiserslautern, Germany
"Autonomous driving with multiobjective model predictive control"

6th International Conference on Continuous Optimization
05.08. - 08.08.2019 - Berlin, Germany
"Feedback control of nonlinear PDEs using Koopman-Operator-based switched systems"

SIAM Conference on Applications of Dynamical Systems
19.05. - 23.05.2019 - Snowbird, Utah, USA
"Data Driven Feedback Control of Nonlinear PDEs Using the Koopman Operator"

SIAM Conference on Computational Science and Engineering
25.02. - 01.03.2019 - Spokane, WA, USA
"Feedback Control of Nonlinear PDEs using Data-efficient Reduced Order Models Based on the Koopman Operator"

Symposium On Machine Learning for Dynamical Systems
11.02. - 13.02.2019 - London, UK
"Low-dimensional data-based surrogate models for analysis, simulation and control of high-dimensional dynamical systems"

Forschungsseminar der Fachgruppe CSC, Max-Planck-Institut für Dynamik Komplexer Technischer Systeme
20.11.2018 - Magedburg, Germany
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

5th European Conference on Computational Optimization (EUCCO) 2018
10.09. - 12.09.2018 - Trier, Germany
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

NUMDIFF-15
03.09. - 07.09.2018 - Halle (Saale), Germany
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

Oxford Universitxy - Control Engineering Group Seminar
14.05.2018 - Oxford, UK
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

89th Annual Meeting of GAMM
19.03. - 23.03.2018 - Munich, Germany
"Set-Oriented Multiobjective Optimal Control of PDEs using Certified ROMs"

4th CRITICS Workshop and Winter School on “Critical Transitions in Complex Systems: Mathematical theory and applications”
12.03. - 16.03.2018, Wöltingerode, Germany
"Controlling the Navier-Stokes equations using low-dimensional bilinear approximations obtained from data"

Center for Industrial Mathematics - University of Bremen
14.12.2017, Bremen, Germany
"Exploiting structure in multiobjective optimal control for real-time applicability and PDE constraints"

it's OWL Strategietagung
06.12.2017, Paderborn, Germany
"Mathematik in der Industrie - von der Mehrzieloptimierung zu intelligenten Systemen"

18th French - German - Italian Conference on Optimization
25.09. - 28.09.2017 - Paderborn, Germany
"Multiobjective optimization with uncertainties and the application to reduced order models for PDEs"

8th International Workshop on Set Oriented Numerics (SON)
12.09. - 15.09.2017 - Santa Barbara, California, USA
"A new framework for Koopman operator based open and closed loop control"

IFAC 2017 World Congress
19.07. - 24.07.2017 - Toulouse, France
"A Multiobjective MPC Approach for Autonomously Driven Electric Vehicle"

SIAM Conference on Applications of Dynamical Systems
21.05. - 25.05.2017 - Snowbird, Utah, USA
"A Multiobjective MPC Approach for Autonomously Driven Electric Vehicles"

88th Annual Meeting of GAMM
06.03. - 10.03.2017 - Weimar, Germany
"POD-based Set Oriented Multiobjective Optimal Control"

Workshop on Optimal and Feedback Control of Differential Equations
21.11. - 23.11.2016 - Konstanz, Germany
"Multiobjective Optimal Control of the Navier-Stokes Equations Using Reduced Order Modeling"

KoMSO Challenge Workshop "Reduced-Order Modeling for Simulation and Optimization"
07.11. - 08.11.2016 - Robert BOSCH Campus, Renningen, Germany
"ROM-based Multiobjective Optimal Control of the Navier-Stokes Equations"

4th European Conference on Computational Optimization
12.09. - 14.09.2016 - Leuven, Belgium
"Reduced Order Model Based Multiobjective Optimal Control of Nonlinear PDEs"

24th International Congress of Theoretical and Applied Mechanics
21.08. - 26.08.2016 - Montreal, Canada
"Reduced Order Model based Multiobjective Optimal Control of Fluids"

11th AIMS Conference on Dynamical Systems, Differential Equations and Applications
01.07. - 05.07.2016 - Orlando, Florida, USA
"Multiobjective Optimal Control of Coherent Structures Using Reduced Order Modeling"

Paderborner Wissenschaftstage
27.06.2016, Paderborn, Germany
"Energieeffizientes autonomes Fahren mit Hilfe mathematischer Optimierungsverfahren"

SON2015 - 6th International Workshop on Set-Oriented Numerics
28.09. - 01.10.2015, London, England
"Multiobjective Optimal Control Methods for Fluid Flow Using Reduced Order Modeling"

SIAM Conference on Control & it's Applications
08.07. - 10.07.2015, Paris, France
"Multiobjective Optimal Control Techniques in Energy Management" (within the Minisymposium "Controls, Optimization and Estimation for Building Energy Managment")

GAMM 86th Annual Meeting
23.03. - 27.03.2015, Lecce, Italy
"Multiobjective Optimization of the Flow Around a Cylinder Using Model Order Reduction"

Oberwolfach Seminar: Projection Based Model Reduction
23.09. - 29.09.2014, Oberwolfach, Germany

SON2014 - 5th International Workshop on Set-Oriented Numerics
01.09. - 05.09.2014, Christchurch, New Zealand
"Multiobjective Optimal Control Methods for the Development of an Intelligent Cruise Control"

SysInt2014 - Conference on System-Integrated Intelligence
02.07. - 04.07.2014, Bremen, Germany
"Development of an Intelligent Cruise Control using Optimal Control Methods"

ECMI2014 - European Consortium for Mathematics in Industry
09.06. - 13.06.2014, Taormina, Italy
"Multiobjective Optimal Control Methods for the Development of an Intelligent Cruise Control"

6th Elgersburg School on Hybrid Dynamical Systems and Mathematical Biology
16.03. - 22.03.2014, Elgersbrug, Germany

GAMM Jahrestagung 2023
30.05. - 02.06.2023, Dresden, Germany

SIAM Conference on Applications of Dynamical Systems
14.05. - 18.05.2023, Portland, Oregon, USA

SIAM Conference on Computational Science adn Engineering
26.02. - 03.03.2023, Amsterdam, Netherlands

10th Vienna International Conference on Mathematical Modelling (MATHMOD)
27.07. - 29.07.2022, Vienna, Austria
“Error estimates for data-driven optimal control by leveraging results for autonomous systems”

8th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS)
05.06. - 09.06.2022, Oslo, Norway
“Efficient data-driven control of fluids using autonomous surrogate models”

DeepTurb project meeting
05.10 - 06.10.2021, Warnemünde, Germany
"Efficient data-driven prediction and control of complex systems using the Koopman operator''

SIAM Conference on Control and Its Applications
19.07. - 21.07.2021, Spokane, WA, USA
"On the universal transformation of data-driven models to control systems"

Inaugural seminar on ``Data-driven Methods in Control'' (organized by the IFAC TC on Optimal Control) (Video)
08.07.2021, online
"On the universal transformation of data-driven models to control systems"

SIAM Conference on Applications of Dynamical Systems
23.05. - 27.05.2021, virtual conference
"On the universal transformation of data-driven models to control systems"

Mini-Workshop: Analysis of Data-driven Optimal Control
10.05. - 14.05.2021, Oberwolfach Research Institute for Mathematics
"On the universal transformation of data-driven models to control systems"

Machine Learning and Dynamical Systems Seminar
10.02.2021, virtual presentation
"On the universal transformation of data-driven models to control systems" (Video)

University of Rostock Seminar talk
24.06.2020 - University of Rostock, Germany
"Data driven feedback control of nonlinear PDEs using POD and the Koopman operator"

Workshop on Optimal Control
02.12. - 03.12.2019 - University of Konstanz, Germany
"The Koopman Operator in PDE-Constrained Optimal Control"

103rd Meeting of the GOR Working Group "Real World Optimization" on "Multicriteria Optimization and Decision Support in Industry"
21.11. - 22.11.2019 - Fraunhofer ITWM, Kaiserslautern, Germany
"Autonomous driving with multiobjective model predictive control"

6th International Conference on Continuous Optimization
05.08. - 08.08.2019 - Berlin, Germany
"Feedback control of nonlinear PDEs using Koopman-Operator-based switched systems"

SIAM Conference on Applications of Dynamical Systems
19.05. - 23.05.2019 - Snowbird, Utah, USA
"Data Driven Feedback Control of Nonlinear PDEs Using the Koopman Operator"

SIAM Conference on Computational Science and Engineering
25.02. - 01.03.2019 - Spokane, WA, USA
"Feedback Control of Nonlinear PDEs using Data-efficient Reduced Order Models Based on the Koopman Operator"

Symposium On Machine Learning for Dynamical Systems
11.02. - 13.02.2019 - London, UK
"Low-dimensional data-based surrogate models for analysis, simulation and control of high-dimensional dynamical systems"

Forschungsseminar der Fachgruppe CSC, Max-Planck-Institut für Dynamik Komplexer Technischer Systeme
20.11.2018 - Magedburg, Germany
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

5th European Conference on Computational Optimization (EUCCO) 2018
10.09. - 12.09.2018 - Trier, Germany
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

NUMDIFF-15
03.09. - 07.09.2018 - Halle (Saale), Germany
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

Oxford Universitxy - Control Engineering Group Seminar
14.05.2018 - Oxford, UK
"Data driven feedback control of nonlinear PDEs using the Koopman operator"

89th Annual Meeting of GAMM
19.03. - 23.03.2018 - Munich, Germany
"Set-Oriented Multiobjective Optimal Control of PDEs using Certified ROMs"

4th CRITICS Workshop and Winter School on “Critical Transitions in Complex Systems: Mathematical theory and applications”
12.03. - 16.03.2018, Wöltingerode, Germany
"Controlling the Navier-Stokes equations using low-dimensional bilinear approximations obtained from data"

Center for Industrial Mathematics - University of Bremen
14.12.2017, Bremen, Germany
"Exploiting structure in multiobjective optimal control for real-time applicability and PDE constraints"

it's OWL Strategietagung
06.12.2017, Paderborn, Germany
"Mathematik in der Industrie - von der Mehrzieloptimierung zu intelligenten Systemen"

18th French - German - Italian Conference on Optimization
25.09. - 28.09.2017 - Paderborn, Germany
"Multiobjective optimization with uncertainties and the application to reduced order models for PDEs"

8th International Workshop on Set Oriented Numerics (SON)
12.09. - 15.09.2017 - Santa Barbara, California, USA
"A new framework for Koopman operator based open and closed loop control"

IFAC 2017 World Congress
19.07. - 24.07.2017 - Toulouse, France
"A Multiobjective MPC Approach for Autonomously Driven Electric Vehicle"

SIAM Conference on Applications of Dynamical Systems
21.05. - 25.05.2017 - Snowbird, Utah, USA
"A Multiobjective MPC Approach for Autonomously Driven Electric Vehicles"

88th Annual Meeting of GAMM
06.03. - 10.03.2017 - Weimar, Germany
"POD-based Set Oriented Multiobjective Optimal Control"

Workshop on Optimal and Feedback Control of Differential Equations
21.11. - 23.11.2016 - Konstanz, Germany
"Multiobjective Optimal Control of the Navier-Stokes Equations Using Reduced Order Modeling"

KoMSO Challenge Workshop "Reduced-Order Modeling for Simulation and Optimization"
07.11. - 08.11.2016 - Robert BOSCH Campus, Renningen, Germany
"ROM-based Multiobjective Optimal Control of the Navier-Stokes Equations"

4th European Conference on Computational Optimization
12.09. - 14.09.2016 - Leuven, Belgium
"Reduced Order Model Based Multiobjective Optimal Control of Nonlinear PDEs"

24th International Congress of Theoretical and Applied Mechanics
21.08. - 26.08.2016 - Montreal, Canada
"Reduced Order Model based Multiobjective Optimal Control of Fluids"

11th AIMS Conference on Dynamical Systems, Differential Equations and Applications
01.07. - 05.07.2016 - Orlando, Florida, USA
"Multiobjective Optimal Control of Coherent Structures Using Reduced Order Modeling"

Paderborner Wissenschaftstage
27.06.2016, Paderborn, Germany
"Energieeffizientes autonomes Fahren mit Hilfe mathematischer Optimierungsverfahren"

SON2015 - 6th International Workshop on Set-Oriented Numerics
28.09. - 01.10.2015, London, England
"Multiobjective Optimal Control Methods for Fluid Flow Using Reduced Order Modeling"

SIAM Conference on Control & it's Applications
08.07. - 10.07.2015, Paris, France
"Multiobjective Optimal Control Techniques in Energy Management" (within the Minisymposium "Controls, Optimization and Estimation for Building Energy Managment")

GAMM 86th Annual Meeting
23.03. - 27.03.2015, Lecce, Italy
"Multiobjective Optimization of the Flow Around a Cylinder Using Model Order Reduction"

Oberwolfach Seminar: Projection Based Model Reduction
23.09. - 29.09.2014, Oberwolfach, Germany

SON2014 - 5th International Workshop on Set-Oriented Numerics
01.09. - 05.09.2014, Christchurch, New Zealand
"Multiobjective Optimal Control Methods for the Development of an Intelligent Cruise Control"

SysInt2014 - Conference on System-Integrated Intelligence
02.07. - 04.07.2014, Bremen, Germany
"Development of an Intelligent Cruise Control using Optimal Control Methods"

ECMI2014 - European Consortium for Mathematics in Industry
09.06. - 13.06.2014, Taormina, Italy
"Multiobjective Optimal Control Methods for the Development of an Intelligent Cruise Control"

6th Elgersburg School on Hybrid Dynamical Systems and Mathematical Biology
16.03. - 22.03.2014, Elgersbrug, Germany

Member of the Program Committee of the 7th International Online & Onsite Conference on Machine Learning, Optimization, and Data Science (LOD2021)

Co-organization of a conference in honor of M. Dellnitz' 60th birthday, Paderborn, 27.09. - 01.10.2021.

Organization of the Minisymposium "Recent trends in multiobjective optimization" at the SIAM Conference on Optimization, online conference, 2021.

Co-organization (with J. Heiland) of the Minisymposium "Data-driven Methods in Model Reduction and Control" at the SIAM Conference on Control and Its Applications, online conference, 2021.

Co-organization (with S. Klus and F. Nüske) of the Minisymposium "Data-driven methods for stochastic systems" at the SIAM Conference on Applications of Dynamical Systems, online conference, 2021.

Co-organization (with H. Lange) of the Minisymposium "Data-driven identification, modeling and control of complex dynamical systems" at the SIAM Conference on Mathematics of Data Science, Cincinnati, Ohio, USA, 2020 (canceled).

Co-organization (with S. Klus, M. Korda and A. Mauroy) of the Minisymposia "Control Techniques based on Koopman Operator Theory" and "Advanced Data-Driven Techniques and Numerical Methods in Koopman Operator Theory" at the SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, USA, 2019.

Member of the Program Committee of the ``The 7th International Online & Onsite Conference on Machine Learning, Optimization, and Data Science'' (LOD2021)Member of the Program Committee of the ``The 7th International Online \& Onsite Conference on Machine Learning, Optimization, and Data Science'' (LOD2021)

Co-organization of a conference in honor of M. Dellnitz' 60th birthday, Paderborn, 27.09. - 01.10.2021.

Organization of the Minisymposium "Recent trends in multiobjective optimization" at the SIAM Conference on Optimization, online conference, 2021.

Co-organization (with J. Heiland) of the Minisymposium "Data-driven Methods in Model Reduction and Control" at the SIAM Conference on Control and Its Applications, online conference, 2021.

Co-organization (with S. Klus and F. Nüske) of the Minisymposium "Data-driven methods for stochastic systems" at the SIAM Conference on Applications of Dynamical Systems, online conference, 2021.

Co-organization (with H. Lange) of the Minisymposium "Data-driven identification, modeling and control of complex dynamical systems" at the SIAM Conference on Mathematics of Data Science, Cincinnati, Ohio, USA, 2020 (canceled).

Co-organization (with S. Klus, M. Korda and A. Mauroy) of the Minisymposia "Control Techniques based on Koopman Operator Theory" and "Advanced Data-Driven Techniques and Numerical Methods in Koopman Operator Theory" at the SIAM Conference on Applications of Dynamical Systems, Snowbird, Utah, USA, 2019.

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