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Chair for Foundations of Software Reliability and Theoretical Computer Science
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Publications in 2017

Dmitry Chistikov, Stefan Kiefer, Ines Marusic, Mahsa Shirmohammadi, and James Worrell. On rationality of nonnegative matrix factorization. In Proceedings of the 28th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA), pages 1290–1305. SIAM, 2017.
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Christoph Haase, Stefan Kiefer, and Markus Lohrey. Computing quantiles in Markov chains with multi-dimensional costs. In Proceedings of the 32nd Annual Symposium on Logic in Computer Science (LICS). IEEE, 2017.
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Stefan Kiefer, Richard Mayr, Mahsa Shirmohammadi, and Dominik Wojtczak. On strong determinacy of countable stochastic games. In Proceedings of the 32nd Annual Symposium on Logic in Computer Science (LICS). IEEE, 2017.
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Stefan Kiefer, Richard Mayr, Mahsa Shirmohammadi, and Dominik Wojtczak. Parity objectives in countable MDPs. In Proceedings of the 32nd Annual Symposium on Logic in Computer Science (LICS). IEEE, 2017.
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Slides 
Dmitry Chistikov, Stefan Kiefer, Ines Marusic, Mahsa Shirmohammadi, and James Worrell. Nonnegative matrix factorization requires irrationality. SIAM Journal on Applied Algebra and Geometry (SIAGA), 1(1):285–307, 2017.
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Stefan Kiefer, Ines Marusic, and James Worrell. Minimisation of multiplicity tree automata. Logical Methods in Computer Science (LMCS), 13(1), 2017.
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Conference version
Christoph Haase, Stefan Kiefer, and Markus Lohrey. Counting problems for Parikh images. In Proceedings of the 42nd International Symposium on Mathematical Foundations of Computer Science (MFCS 2017), pages 12:1–12:13, 2017.
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