I have moved and so has my homepage

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Ansgar Fehnker Ansgar
  
Mail:
Computing Science Institute
P.O. Box 9010
6400 GL Nijmegen
The Netherlands
Address:
Room A6018
Toernooiveld 1
6525 ED Nijmegen
Phone:
+31 (0)24 36 52077
e-mail:
ansgar@cs.kun.nl
Research
   I am a PhD student (OiO) at the Computing Science Institute at the Nijmegen University in the Netherlands and member of the Informatics for Technical Applications group. My supervisor is Frits Vaandrager. I'm interested in model checking of timed and hybrid systems, in particular in the following issues: (1) Extending the timed automaton model with a notion of cost, such that model checker can be used to solve optimization problems. (2) Extending the model checking algorithm to support heuristic search of the state space. (3) Approximation techniques for reachable sets of hybrid systems. Within the last years there has been intensive collaboration with our partners in the EU LTR-project VHS, and the Uppaal group, and of course with my collegues in Nijmegen who work also on realtime and hybrid systems.
Publications
   Kim Larsen, Gerd Behrmann, Ed Brinksma, Ansgar Fehnker, Thomas S. Hune, Paul Petterson and Judi Romijn. As Cheap as Possible: Efficient Cost-Optimal Reachability for Priced Timed Automata . CAV 2001. (ps)
   Gerd Behrmann, Ansgar Fehnker, Thomas S. Hune, Kim Larsen, Paul Petterson and Judi Romijn Efficient Guiding Towards Cost-Optimality in Uppaal. Proc. TACAS'2001. (ps)
   Gerd Behrmann, Ansgar Fehnker, Thomas S. Hune, Kim Larsen, Paul Petterson, Judi Romijn and Frits Vaandrager . Minimum-Cost Reachability for Linearly Priced Timed Automata. Proc. HSCC'2001.(ps)
   Gerd Behrmann, Ansgar Fehnker, Thomas S. Hune, Kim Larsen, Paul Petterson and Judi Romijn. Guiding and Cost-Optimality in Uppaal. AAAI Spring Symposium Model-Based Validation of Intelligence, 2001. (ps)
   Tobias Amnell, Gerd Behrmann, Johan Bengtsson, Pedro R. D'Argenio, Alexandre David, Ansgar Fehnker, Thomas S. Hune, Bertrand Jeannet, Kim Larsen, M. Oliver Möller, Paul Pettersson, Carsten Weise, and Wang Yi. UPPAAL - Now, Next, and Future. MOVEP'2k, LNCS Tutorial 2067, 2001. (ps)
   Ansgar Fehnker. Scheduling a Steel Plant with Timed Automata. RTCSA'99, IEEE Computer Society Press, 1999. (ps)
   Henning Dierks, Ansgar Fehnker, Angelika Mader and Frits Vaandrager . Operational and Logical Semantics for Polling Real-Time Systems. Proc. FTRTFT'98, LNCS 1486, 1998. (ps)
   Ansgar Fehnker. Automotive Control Revisited -- Linear Inequalities as Approximation of Reachable Sets.Proc. HSCC'98, LNCS 1386, 1998. (ps)
   Ansgar Fehnker. Heuristic Reachability Analysis of Hybrid Systems. Draft, 2000. (ps)
   Ansgar Fehnker. Bounding and Heuristics in forward reachability algorithms.Computing Science Institute Nijmegen, Tech. rep. CSI-R0002, 2000. (ps)
   Ansgar Fehnker. Scheduling a Steel Plant with Timed Automata. Computing Science Institute Nijmegen, Tech. rep. CSI-R9910, 1999. (ps)
   Henning Dierks, Ansgar Fehnker, Angelika Mader and Frits Vaandrager . Operational and Logical Semantics for Polling Real-Time Systems. Computing Science Institute Nijmegen, Tech. rep. CSI-R9813, 1998. (ps)
   Ansgar Fehnker. Automotive Control Revisited Linear Inequalities as Approximation of Reachable Sets. Computing Science Institute Nijmegen, Tech. rep. CSI-R9723, 1997. (ps)
   Ansgar Fehnker. Two Identification Methods for an Active Sludge Model. Master's Thesis, Rijksuniversiteit Groningen, 1996.
   You may find my Bibtex archive here.
Other Activities Miscellaneous
   Organizing the ITT colloquium.    My office mate is Mariëlle
   I collected information for Foreign Students in the Netherlandds.    There is a link to my page on Mariekes homepage.
   In 1998 and 1999 I assisted Frits Vaandrager with his course Operating Systems, formerly known as M3.    In 1998 I made some predictions for our football pool with reasonable results, ...
   Involved in organizing the 1999 workshop HSCC99    ... and spend some nice days in a Bavarian summer school.
   Last fall I gave an Introduction to Model Checking for Frits Vaandrager's course Protocol Validation    In the summer of 1999 I moved to Ravenstein, together with Melanie and our two cats (called Mies and Mowie).
   If you are curious and able to read Dutch you will find here what I did in 1997, 1998 and 1999    One year later the municipality of Ravenstein decided to abolish itself (Thanks to Marieke for this link).
A short CV
   I was born in 1971 in Teglingen, No 25.
   Later, I went for four years to the primary school in Teglingen, and ...
   ... spent 9 years on the secondary school Gymnasium Marianum in Meppen.
   I then left Teglingen to study Mathematics at the Philipps-Universität Marburg for two years ...
   ... and continued studying Mathematics at the Rijksuniversiteit Groningen for four years.
   Then I came to Nijmegen to work on my PhD, and hope to complete my thesis soon.