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    [Kathrin Hatz]
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Dr. Kathrin Hatz

Now working at Bayer Technology Services, Leverkusen, Germany Foto: Kathrin Hatz

Contact information

Dr. rer. nat. Dipl.-Math. Kathrin Hatz
Interdisciplinary Center for Scientific Computing (IWR)
University of Heidelberg
Im Neuenheimer Feld 368
69120 Heidelberg, Germany

Room: 408
E-mail: Kathrin.Hatz@iwr.uni-heidelberg.de
Phone: +49 (0)6221 - 54 8830

Research interests

  • Hierarchical/bilevel optimal control
  • Real-world applications, interdisciplinary projects
  • Bilevel programming, mathematical programs with equilibrium constraints (MPECs)
  • Human gait modeling

Publications

  • D. Clever, K. Hatz, K. Mombaur, Studying Dynamical Principles of Human Locomotion using Inverse Optimal Control, Proceedings in Applied Mathematics and Mechanics, 2014
  • K. Hatz, Efficient Numerical Methods for Hierarchical Dynamic Optimization with Application to Cerebral Palsy Gait Modeling, Dissertation, University of Heidelberg, 2014 (PhDThesis_KHatz.pdf)
  • K. Hatz, S. Leyffer, J.P. Schloeder and H.G. Bock, Regularizing Bilevel Nonlinear Programs by Lifting, Preprint ANL/MCS-P4076-0613, Argonne National Laboratory, Mathematics and Computer Science Division, 2013
  • K. Hatz, J.P. Schloeder and H.G. Bock, Estimating Parameters in Optimal Control Problems, SIAM Journal on Scientific Computing, 34(3), A1707 - A1728, 2012
  • K. Hatz, K. Mombaur and J.M. Donelan, Control of Ankle Extensor Muscle Activity in Walking Cats, Journal of Neurophysiology, 2012
  • K. Hatz, Estimating Parameters in Optimal Control Problems, Diplomarbeit (diploma thesis), University of Heidelberg, 2008
  • M. P. Friedlander and K. Hatz, Computing Nonnegative Tensor Factorizations, Optimization Methods and Software, 23(4), 631-647, 2008

Background

  • Postdoctoral researcher, University of Heidelberg (2014)
  • PhD fellow in the graduate school HGS MathComp, University of Heidelberg (2009 - 2013)
  • President of the Heidelberg Chapter of SIAM (2011 - 2013, visit siamchapter@uni-hd.de)
  • Thesis-Parts Appointment at the Argonne National Laboratory, USA, working with Prof. S. Leyffer (2010)
  • Studies at the University of Heidelberg, diploma in mathematics, minor subjects: physics and computer science (2003 - 2009)
  • Research student at the University of British Columbia, Canada, working with Prof. M.P. Friedlander (2006)

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