(Invited Talks see below)
- Minisymposium on "Modern Topics in Optimum Experimental Design", SIAM Conference on Uncertainty Quantification, Savannah, USA, 2014
- Challenge Workshop "Optimizing Control of Chemical/Biological Production Processes - Algorithms, Software and Applications", BASF Ludwigshafen, 2014 (with A. Schreieck, A. Badinski (BASF))
- Invited Stream on Optimal Control, 26th European Conference on Operational Research, Rom, 2013
- International Conference on Mathematical Modeling of Microbiological Systems, Marburg, 2012
- Member of Organizing Committee, 5th International Conference on "High Performance Scientific Computing: Modeling, Simulation and Optimization of Complex Processes", Hanoi, Vietnam, 2012
- International Conference on Mathematical Methods in Biology, Marburg, 2012 (with S. Dahlke, B. Eckardt)
- Section "Optimization", GAMM Annual Meeting, Graz, 2011 (with K. Klamroth)
- Member of International Advisory Committee, International Conference of Manufacturing and Engineering Systems, Taiwan, 2010
- Scientic Computing Day, Workshop, Marburg, 2009 (with S. Dahlke, U. Friedrich)
- Invited Minisymposium on Optimization and Engineering, 4th International Conference on High Performance Scientic Computing, Hanoi, Vietnam, 2009 (with T. Terlaky)
- Invited Minisymposium on Optimization Problems and Methods in Biological systems, SIAM Conference on Applications in Dynamic Systems, Utah, 2009.
- Conference on Modeling, Simulation and Optimization of Complex Processes, Heidelberg, 2008 (with M. Braack, W. Jager, G. Kanschat, H. X. Phu, G. Reinelt, J. Schloeder)
- Invited Minisymposium on Optimization in Medicine and Health Care, Czech-French- German Conference on Optimization, Heidelberg, 2007 (with J. P. Schloder)
- Invited Stream on PDE-Constrained Optimization, 6 sessions, International Conference on Continuous Optimization, Hamilton, 2007
- Invited Minisymposium on Optimization and Optimal Control under Uncertainties, International Conference on High Performance Scientific Computing, Hanoi, Vietnam, 2006.
- Invited Minisymposium on Interior Point Methods, International Conference on High Performance Scientific Computing, Hanoi, Vietnam, 2006 (together with T. Terlaki).
- Invited Minisymposium on Modeling, Simulation and Optimization of Complex Processes, 4 sessions, SIAM Annual Meeting, Boston, 2006 (together with H. G. Bock)
- Minisymposium on Optimal Control Applications in Engineering, SIAM Conference on Control and its Applications, New Orleans, 2005 (together with H. G. Bock, M. Heinkenschloss)
- International Conference on Optimization under Uncertainties, Heidelberg, September 2005 (together with J. Albersmeyer, H. G. Bock)
- Industrieworkshop "Nichtlineare Parametersch"atzung und Versuchsplanung", Heidelberg, 2004 (together with U. Brandt-Pollman, K. Mombaur, J. P. Schloeder)
- Invited Minisymposium on Optimum Experimental Design, European Conference on Computational Optimization, Dresden, 2004 (together with V. Heuveline)
- International Workshop on Parameter Estimation and Optimal Design of Experiments: Numerical Methods and Applications, Heidelberg, 2004 (together with H. G. Bock, S. Koerkel, J. P. Schloeder)
- Invited Minisymposium on Parameter Estimation and Optimum Experimental Design in Differential Equations, International Conference on High Performance Scientific Computing, Hanoi, Vietnam, 2003.
Invited Talks
- Direct Optimal Control Methods for a Centralized Approach to Separation Management, International Conference on Mathematical Control Theory and Mechanics, July 5-9, 2013, Suzdal, Russia
- Online Computation of Optimal Constrained Controls for ODE/DAE Systems, DGLR L6.1 Workshop "Bestimmung optimaler Trajektorien im Air Traffic Management", April 23, 2013, DFS, Langen
- Parameter Estimation for Forward Kolmogorov Equation with Application to Nonlinear Exchange Rate Dynamics, Oberseminar Wissenschaftliches Rechnen, Julius-Maximilians-Universitaet Wuerzburg, Lehrstuhl fuer Wissenschaftliches Rechnen IX, April 16, 2013, Wuerzburg
- Nonlinear Model Predictive Control of Non-Stationary Partial Differential Equations, Workshop "Numerical Methods for PDE Constrained Optimization with Uncertain Data", Mathematisches Forschungsinstitut Oberwolfach, January 27 - February 02, 2013, Oberwolfach
- Optimization Methods for Model Validation, Department of Mathematics and Computer Science, Chulalongkorn University, March 29, 2012, Bangkok, Thailand
- Efficient Methods for Model Validation Using Krylov-Type Technique, Conference on Evolution Equations, Related Topics and Applications , Waseda University, March 19 - 23, 2012, Tokyo, Japan
- Optimization-Based Model Validation, LOEWE-Schwerpunkt Praeventive Biomechanik - PraeBionik, February 8, 2012, Frankfurt-am-Main
- Robust Optimization Against Model Uncertainties, The Fourth Chinese-German Workshop on Computational and Applied Mathematics , September 26-30, 2011, Guang Zhou, China
- Numerical Methods for Model Discrimination in Chemistry and Biosciences, SIAM Conference on Optimization , May 17, 2011, Darmstadt
- Mathematical Optimization Methods for Robot Calibration, Workshop of the Mechanical Engineering Department, Columbia University , April 9, 2011, New York, USA
- Optimal Experimental Design for Biological Systems, National Cheng Kung University, December 14, 2010, Taiwan
- Mathematical Methods for Model Validation: Parameter Estimation and Optimum Experimental Design, FH Giessen, July 12, 2010
- NOVOEXP: Numerische Optimierungsverfahren fuer die Parameterschaetzung und den Entwurf optimaler Experimente unter Beruecksichtigung von Unsicherheiten fuer die Modellvalidierung verfahrenstechnischer Prozesse der Chemie und Biotechnologie, BMBF-Statusseminar "Mathematik fuer Innovationen in Industrie und Dienstleistungen", June 9-10, 2010, Kaiserslautern
- Robustness Issues in Nonlinear Constrained Optimization Problems, Workshop on "Optimal Control in Image Processing", May 31 - June 1, 2010, Heidelberg
- Mathematical Optimization Methods for Robot Calibration, China-Germany Conference on "Mathematics and Industry", Beijing, March 15-18, 2010
- Trends in Theory, Numerical Methods and Applications of Optimization of Dynamic Processes, The IWR Heidelberg and Shanghai Jiao Tong University Joint Workshop on Scientific Computing, Shanghai, March 12 -13, 2010
- Trends in Theory, Numerical Methods and Applications of Optimization of Dynamic Processes, International Conference on Advanced Computing and Applications, Ho Chi Minh City, March 3-5, 2010
- Trends in Theory, Numerical Methods and Applications of Optimization of Dynamic Processes, International Conference on Manufacturing and Management Systems, Taiwan, December 17-19, 2009
- Efficient Methods for Model Validation in Biological Processes, Second International Workshop on Mathematical Modelling of Cellular Biosystems, Warsaw, October 1-3, 2009
- Robust Optimization Issues in Parameter Optimization and Optimum Experimental Design for DAE Models, Workshop "Model Based Parameter Estimation: Theory and Applications, Heidelberg, July, 15 - 17, 2009
- Online Design of Optimal Experiments A Challenge for Numerical Optimal Control, International Conference "Control: Theory and Systems", Moscow, January 26 - 30, 2009
- Covariance Matrix Computation for Parameter Estimation in Nonlinear Models Solved by Iterative Linear Algebra Methods, Workshop "Model Based Optimal Experimental Design for Nonlinear Processes", Heidelberg, November 5-7, 2008
- Robust Optimization Issues in Parameter Estimation and Optimum Experimental Design for DAE Models, International Workshop on Advanced Computing and Applications, Ho Chi Minh City, March 12 - 14, 2008
- Robustness Issues in Parameter Estimation and Design of Optimal Experiments for Complex Dynamic Systems, International Workshop "Useful Applications of Mathematics and Scientific Computing to Real Life and Local Problems in Developing and Developed Countries, Vientiane, March 9 - 10, 2008
- Efficient Methods for Parameter Estimation and Optimum Experimental Design for Dynamic Processes, Workshop on Dynamical Systems, Control and Optimization, Brussels, November 22, 2007
- Model-Based Design of Optimal Experiments for Parameter Estimation and Applications, BIRS Workshop Optimization and Engineering Applications, November 11-16, 2006
- Numerical Solution of Large-Scale Optimal Control Problems in Robust Optimum Experimental Design, Workshop on Differential-Algebraic Equations, Oberwolfach, April 16-22, 2006
- Numerical Optimization under Uncertainties with Applications from Engineering and Industry, FOMAAS Kolloquium "Analyse, Simulation und Optimierung Komplexer Systeme", Universitaet Siegen, Siegen, 2006.
- Robustness Issues in Model Validation for Complex Dynamic Processes, Invited Lecture, GAMM Jahrestagung, Berlin, 2006.
- Robustness in Parameter Estimation and Design of Optimal Experiments for Complex Dynamic Systems, Arbeitskreis Dortmund-Siegen-Wuppertal "Numerische Analysis und Wissenschaftliches Rechnen", Universitaet Dortmund, Dortmund, 2005.
- Algorithms for Robust Parameter Estimation and Design of Robust Optimal Experiments for Complex Dynamic Systems, DMV-Tagung, Heidelberg, 2004.
- Robustness Issues in Parameter Estimation and Design of Optimal Experiments for Complex Dynamic Systems, Abschlusskolloquium des SFB 359, Heidelberg, 2004.
- Robustness in Parameter Estimation and Design of Optimal Experiments for Complex Dynamic Systems, Seminar des Instituts f"ur Numerische Mathematik, TU Dresden, Dresden, 2004.
- Design of Robust Optimal Experiments for Processes Governed by DAE, ASIM Workshop, Siegen, Germany, 2004.
- Robust Optimal Design of Experiments for DAE and PDE, 18th International Symposium on Mathematical Programming, Copenhagen, Denmark, 2003.
- Robust Parameter Estimation in Systems of Differential Equations, International Conference on High Performance Scientific Computing, Hanoi, Vietnam, 2003.
- Robust Parameter Estimation in Systems of Differential Equations, Seminar of the Freiburg Center for Data Analysis and Modelling, Freiburg University, Freiburg, 2003.
- Parameter Estimation for Forward Kolmogorov Equations with Application to Nonlinear Exchange Rate Dynamics, Seminar at the Center for Mathematics and its Applications, Mathematical Sciences Institute, Australian National University, Canberra, Australia, 2003.
- Primal-Dual Active-Set Method for Quadratic Programming, Kolloqium "Optimization and Operations Research" der Wirtschafts- und Sozialwissenschaftlichen Fakultaet und das Fachbereichs Mathematik, Universitaet Dortmund, Dortmund, 2003.
- Simulation und Optimierung in Anwendungen aus Industrie und Wirtschaft, Seminar das Fachbereichs Mathematik, TU Kaiserslautern, Kaiserslautern, 2003.
- Numerical Solution of Optimal Control Problems in Robust Optimum Experimental Design. Invited lecture at the minisymposium, SIAM Conference on Optimization, Toronto, Canada, 2002.
- Accelerating the Global and Local Convergence of Newton-Type Methods. Seminar at SOL, Stanford University, California, USA, 2001.
- Recent Advances in Parameter Estimation and Optimum Experimental Design for DAE Models and Applications in Engineering. Seminar at Mathematical Department, Technical University of Hamburg-Harburg, Germany, Hamburg-Harburg, 2001.
- Efficient Globalization of the Convergence of Newton Type Methods. Seminar am Department of Mechanical Engineering, Columbia University, USA, New York, 2000.
- "Adaptive Algorithms for l_1 and l_infty Nonlinear Problems with Application to Robust Parameter Estimation for Dynamic Processes. Seminar of the Mathematical Institute, RWTH, Aachen. Germany, Aachen, 1999.
- Adaptive Algorithm for Linear Programming. Seminar at IWR. Germany, Heidelberg, 1995.