Research output per year
Research output per year
Personal profile
Research profile
Christopher Hojny is an assistant professor working at TU/e since October 2019. His main research topic is the development of efficient techniques to handle symmetries in mixed-integer programs. Besides symmetry handling, he is also interested in theoretical properties of integer programs (e.g., the existence of formulations with certain properties) and developing integer programming approaches to solve combinatorial optimization problems. Christopher is also a co-developer of the academic solver SCIP.
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A Hybrid Model to Find Schedules for Double Round Robin Tournaments With Side Constraints
van Doornmalen, M. J. J., Hojny, C., Lambers, R. & Spieksma, F. C. R., 2021, Proceedings of the 13th International Conference on the Practice and Theory of Automated Timetabling - PATAT 2021. de Causmaecker, P., Özcan, E. & Vanden Berghe, G. (eds.). 2021 ed. Vol. 2. p. 412 419 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open Access -
Computational Aspects of Relaxation Complexity
Averkov, G., Hojny, C. & Schymura, M., 2021, Integer Programming and Combinatorial Optimization - 22nd International Conference, IPCO 2021, Proceedings. Singh, M. & Williamson, D. P. (eds.). p. 368-382 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 12707 LNCS).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
1 Citation (Scopus) -
Computational aspects of relaxation complexity: possibilities and limitations
Averkov, G., Hojny, C. & Schymura, M., 30 Dec 2021, (E-pub ahead of print) In: Mathematical Programming. XX, XResearch output: Contribution to journal › Article › Academic › peer-review
Open Access -
Mixed-Integer Programming Techniques for the Connected Max-k-Cut Problem
Hojny, C., Joormann, I., Lüthen, H. & Schmidt, M., Mar 2021, In: Mathematical Programming Computation. 13, p. 75-132 58 p.Research output: Contribution to journal › Article › Academic › peer-review
Open Access3 Citations (Scopus) -
Strong IP formulations need large coefficients
Hojny, C., Feb 2021, In: Discrete Optimization. 39, 24 p., 100624.Research output: Contribution to journal › Article › Academic › peer-review
Open Access2 Citations (Scopus)
Prizes
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Preis für hervorragende wissenschaftliche Leistungen
Hojny, Christopher (Recipient), 2019
Prize: Other › Career, activity or publication related prizes (lifetime, best paper, poster etc.) › Scientific
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Exploiting Subgroup Structures in Symmetry Handling
Christopher Hojny (Speaker)
14 Jul 2021Activity: Talk or presentation types › Invited talk › Scientific
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Computational Aspects of Relaxation Complexity
Christopher Hojny (Speaker)
26 May 2021Activity: Talk or presentation types › Invited talk › Scientific
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Computational Aspects of Relaxation Complexity
Christopher Hojny (Speaker)
21 May 2021Activity: Talk or presentation types › Contributed talk › Scientific
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Mixed-Integer Programming Techniques for the Connected Max-k-Cut Problem
Christopher Hojny (Speaker)
4 Jun 2020Activity: Talk or presentation types › Invited talk › Scientific
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Symretopes and Symresacks: A Framework for Deriving Generic and Problem Specific Symmetry Handling Inequalities
Christopher Hojny (Speaker)
9 Dec 2019Activity: Talk or presentation types › Invited talk › Scientific