I am conducting research in mathematical programming and operations research, on the edge between computer science, mathematics, and economics, and with a focus on computational methods and numerical implementations of high performance. My particular research interests include (but are not limited to):
- Discrete Algorithms & Combinatorial Optimization & Mathematical Programming & Operations Research
- Integer Programming, (Non-)Linear Programming, in particular Binary (Quadratic) Programming
- Branch-&-Cut Algorithms, Reformulation and Linearization Techniques
- Efficient Algorithms & Data Structures, Algorithm Engineering and High Performance Computing
- Graph Algorithms, Drawing, and Theory
- Data and Network Analyses
- Numerical Optimization
A particular emphasis in my scientific work is on a better solution of
optimization problems in practice, e.g., by improving or reformulating
corresponding models, by sophisticated computational advances such as
engineered separation algorithms, by exploiting structures to derive
tailored preprocessing and solution methods, or by enhancing the respective
solution methods themselves.
Please find below a selection of current research projects as well as publications.
Academic Background & Professional Appointments
Since April 2020, I am affiliated with the
High Performance Computing & Analytics Lab
University of Bonn.
My prior academic background is as follows:
- 10/2019-03/2020: Research Associate (Postdoc) - Department of Mathematics & Computer Science - University of Cologne
- 04/2019-09/2019: Interim (Full) Professorship - Department of Mathematics & Computer Science - University of Cologne
- 01/2015-03/2019: Research Associate (Postdoc) - Department of Mathematics & Computer Science - University of Cologne
- 2015: PhD in Computer Science - University of Cologne
- 04/2009-01/2015: Research Assistant (PhD Candidate) - Department of Mathematics & Computer Science - University of Cologne
- 11/2008: Diploma in Computer Science - Technical University of Dortmund
Three major selected current projects are:
Inductive Linearization for (constrained) Binary Quadratic Problems (Theory and Computational Study)
- The novel solver (also available as a web-based service) McSparse for (sparse) Maximum Cut and Unconstrained Binary Quadratic Optimization (paper @ALENEX22)
- The relaunch (and step-wise enhancement) of a Spin Glass Server that was previously run at the University of Cologne.
You may access a full publication
list (i.e., with theses as well as recent and earlier preprints)
A list of peer-reviewed publications is also available via ORCID.
Finally, you might also take a look at DBLP, however, as you see some of the rather math-oriented journal publications are either not listed there or only listed with a quite large delay.