Friedrich Gretz

E-Mail:

put fgretz before @cs.rwth-aachen.de

Phone:

+49-241/80-21203

Fax:

+49-241/80-22217

Postal Address:

Friedrich Gretz

Lehrstuhl für Informatik II

RWTH Aachen

D-52056 Aachen

Germany

Visiting Address:

Room 4210

Ahornstraße 55

D-52074 Aachen

I am a PhD student at the Software Modeling and Verification Group (MOVES) headed by Professor J.-P. Katoen.
My research interests include:

Formal methods for qualitative and quantitative systems
Deductive reasoning methods for quantitative systems
Formal semantics of high level specification languages

2018
	Federico Olmedo, Friedrich Gretz, Nils Jansen, Benjamin Lucien Kaminski, Joost-Pieter Katoen, Annabelle McIver. Conditioning in Probabilistic Programming. ACM Transactions on Programming Languages and Systems (TOPLAS) 40(1), pages 4:1-4:50, 2018.
2016
	Friedrich Gretz, Nils Jansen, Benjamin Lucien Kaminski, Joost-Pieter Katoen, Federico Olmedo. On the Semantic Intricacies of Conditioning. Collected Abstracts of the 1st Workshop on Probabilistic Programming Semantics (PPS 2016), 2016.
2015
	Joost-Pieter Katoen, Friedrich Gretz, Nils Jansen, Benjamin Lucien Kaminski, Federico Olmedo. Understanding Probabilistic Programs. Correct System Design - Symposium in Honor of Ernst-Rüdiger Olderog on the Occasion of His 60th Birthday, Volume 9360 of LNCS, pages 15-32, Springer, 2015.
	Friedrich Gretz. Semantics and Loop Invariant Synthesis for Probabilistic Programs. Phd Thesis at RWTH Aachen University, 2015.
	Nils Jansen, Benjamin Lucien Kaminski, Joost-Pieter Katoen, Federico Olmedo, Friedrich Gretz, Annabelle McIver. Conditioning in Probabilistic Programming. Proc. of the 31st Conference on the Mathematical Foundations of Programming Semantics (MFPS 2015), ENTCS 319, pages 199-216, 2015.
2014
	Friedrich Gretz, Joost-Pieter Katoen, Annabelle McIver. Operational versus Weakest Pre-expectation Semantics for the Probabilistic Guarded Command Language. Performance Evaluation 73, pages 110–132, 2014.
2013
	Friedrich Gretz, Joost-Pieter Katoen, Annabelle McIver. PRINSYS — on a Quest for Probabilistic Loop Invariants. 10th Int. Conf. on Quantitative Evaluation of Systems (QEST'13), Volume 8054 of LNCS, pages 172–187, Springer, 2013.
2012
	Friedrich Gretz, Joost-Pieter Katoen, Annabelle McIver. Operational versus Weakest Precondition Semantics for the Probabilistic Guarded Command Language. Quantitative Evaluation of Systems (QEST), IEEE CS Press, 2012.

2010
	Friedrich Gretz. Invariant Generation for Linear Probabilistic Programs. Diplomarbeit at RWTH Aachen University, 2010.

BSc/MSc/Diploma Topics
Teaching WS 2012/13
Hybrid Systems Group

We are looking for a HiWi for the Compiler Construction course. If you are interested, please contact Thomas Noll.

Joost-Pieter Katoen has been appointed as a member of the renowned Academia Europaea (Academy of Europe), a European, non-governmental association acting as an Academy whose members are scientists and scholars who collectively aim to promote learning, education and research.

Vacancies for postdoctoral researchers in "Automated Analysis of Probabilistic Programs". Application deadline: August 15, 2013.

Joost-Pieter Katoen has been awarded a Distinguished Professorship from the RWTH Aachen University.

The Hybrid Systems: Computation and Control (HSCC'13) conference in Philadelphia has been very successful: Hongfei Fu received the best student paper award for his paper "Approximating acceptance probabilities of CTMC-paths on multi-clock deterministic timed automata". Besides, the paper by Ilya Tkachev, Alexandru Mereacre, Alessandro Abate and Joost-Pieter Katoen was ranked second in the overall best paper award selection.

Joost-Pieter Katoen has been elected as Steering Committee Chair of ETAPS (www.etaps.org), the largest conference on theory and practice of software in Europe. He is the first non-UK ETAPS SC chair since the conference was initiated in 1998. More information here.

The Alumni-Magazine of RWTH Aachen University contains an interview with our former PhD student and postdoctoral researcher, Dr. Tingting Han.

HiWi's wanted to work in a new European Space Agency project for enhancing state-of-the-art design and analysis tools (COMPASS) for the next generation European rockets. Need programming and model checking affinity. See here for details and contact.

We offer openings for several PhD candidates in the area of
"Model-Based Design and Analysis for Dependable Software Systems". Deadline for application: September 14, 2012. For further information click here.

The Theory of Hybrid Systems Group offers two jobs as student assistants within the CEBug project. For more information, look here.

Dino Distefano received the prestigious Roger Needham Award for his work on software verification. This award is for a distinguished research contribution in computer science by a UK based researcher who has completed up to 10 years of post-doctoral research. Dr. Distefano was the first PhD student supervised by Joost-Pieter Katoen.

Marijn Jongerden received the German MMB (Messung, Modellierung und Bewertung von Rechensystemen) Award 2012 of the GI/ITG-Committee for Measurement, Modelling and Evaluation of Computing Systems for his PhD-thesis on "Model-based energy analysis of battery powered systems". His work was supervised by Boudewijn Haverkort (Twente) and Joost-Pieter Katoen.

Our paper "Formal Correctness, Safety, Dependability and Performance Analysis of a Satellite" has been accepted to ICSE 2012 in the track SE in Practice (18% acceptance rate). The paper treats a new satellite from the European Space Agency that was modeled and analyzed with modern tools during the actual satellite design.

Joost-Pieter Katoen will act as DJ in the "Nacht der Professoren" in the Apollo bar and cinema.