Completed Theses and New Positions
Sebastian defended his habilitation thesis On the Integration of Optimization Approaches for Mixed-Integer Nonlinear Optimal Control at the Faculty of Mathematics and Computer Science of the Universität Heidelberg that he already finished in 2011. Almost simultaneously, on April 1 of 2012, he started his new position as full professor at the Otto-von-Guericke Universität Magdeburg. With a little delay this could be celebrated at the event of his Antrittsvorlesung.
Celebrations
2012 was a happy year, as two members of our group found their way into the "safe haven of marriage". Lena and Mike got married on July 2nd in Alsbach-Hähnlein at the border of the famous Odenwald. Claudia and Tony got married on December 1st in the beautiful town of Speyer.
Kleinwalsertal retreat
Events
In January, the whole group went on an EMBOCON retreat in the beautiful Kleinwalsertal. Combining scientific exchange with inspiring skiing, we came back with a whole lot of new ideas, more insight, and motivation to continue our research in embedded optimization. Thus we definitely recommend a stay in the Marburger Haus which fortunately is open also to people without a link to Marburg University.
Conferences
The main conferences of 2012 were without doubt the HPSC2012 in Hanoi, Vietnam,
and the ISMP12 in Berlin,
At both conferences the group participated actively with almost a dozen presentations.
Publications
We could publish our work in many articles.
- J. Frasch, L. Wirsching, S. Sager & H. Bock. Mixed-Level Iteration Schemes for Nonlinear Model Predictive Control. Proceedings of the IFAC Conference on Nonlinear Model Predictive Control. 2012.
- J. Frasch, T. Kraus W. Saeys & M. Diehl. Moving Horizon Observation for Autonomous Operation of Agricultural Vehicles. Proceedings of the European Control Conference. 2012.
- Y. Gao, A. Gray, J. Frasch, T. Lin, E. Tseng, J. Hedrick & F. Borrelli. Spatial Predictive Control for Agile Semi-Autonomous Ground Vehicles. Proceedings of the 11th International Symposium on Advanced Vehicle Control. 2012.
- M. Gerdts & S. Sager. Mixed-Integer DAE Optimal Control Problems: Necessary conditions and bounds. Control and Optimization with Differential-Algebraic Constraints, pp. 189–212, 2012.
- M. Gräber, C. Kirches, D. Scharff & W. Tegethoff. Using Functional Mock-up Units for Nonlinear Model Predictive Control. Proceedings of the 9th Modelica Conference. 2012.
- M. Gräber, C. Kirches, J. Schlöder & W. Tegethoff. Nonlinear Model Predictive Control of a Vapor Compression Cycle based on First Principle Models. Proceedings of MATHMOD 2012, Vienna, February 15--17. 2012.
- C. Kirches, H. Bock & S. Leyffer. Modeling Mixed-Integer Constrained Optimal Control Problems in AMPL. Proceedings of MATHMOD 2012, Vienna, February 15--17. 2012.
- C. Kirches, H. Bock, J. Schlöder & S. Sager. Complementary Condensing for the Direct Multiple Shooting Method. Modeling, Simulation, and Optimization of Complex Processes. Proceedings of the Fourth International Conference on High Performance Scientific Computing, March 2-6, 2009, Hanoi, Vietnam, pp. 195–206, 2012.
- S. Sager. A benchmark library of mixed-integer optimal control problems. Mixed Integer Nonlinear Programming, pp. 631–670, 2012.
- S. Sager, H. Bock & M. Diehl. The Integer Approximation Error in Mixed-Integer Optimal Control. Mathematical Programming A 133(1–2), pp. 1–23, 2012.