The project "Realisierung von Beschleunigungsstrategien der anwendungsorientierten Mathematik und Informatik für optimierende Energiesystemmodelle" ("BEAM-ME"), which is...
A major aim of the Research Campus MODAL is the development and use of mathematical synergies between the individual labs of the network. In this context, the fields of...
Many real world problems can be modeled as mixed integer programs (MIPs) or mixed integer nonlinear programs (MINLPs). This project aims at developing tools for modeling...
An efficient solver for large-scale onshore wind farm siting including cable routing
European Journal of Operational Research, 317(2), pp. 616-630, 2024 (epub ahead of print, preprint available as ZIB-Report 23-10)
Jaap Pedersen, Jann Michael Weinand, Chloi Syranidou, Daniel RehfeldtPDF (ZIB-Report) PDF (ZIB-Report) BibTeX arXiv DOI
Implications, Conflicts, and Reductions for Steiner Trees
Mathematical Programming, Vol.197, pp. 903-966, 2023
Daniel Rehfeldt, Thorsten KochBibTeX DOI
A massively parallel interior-point solver for LPs with generalized arrowhead structure, and applications to energy system models
European Journal of Operational Research, 296(1), pp. 60-71, 2022 (preprint available as ZIB-Report 19-41)
Daniel Rehfeldt, Hannes Hobbie, David Schönheit, Thorsten Koch, Dominik Möst, Ambros GleixnerPDF (ZIB-Report) BibTeX DOI
Optimal Connected Subgraphs: Integer Programming Formulations and Polyhedra
Networks, 80(3), pp. 314-332, 2022
Daniel Rehfeldt, Henriette Franz, Thorsten KochBibTeX DOI
Faster algorithms for Steiner tree and related problems: From theory to practice
Doctoral thesis, Technische Universität Berlin, Thorsten Koch, Eduardo Uchoa, Renato Werneck (Advisors), 2021
Daniel RehfeldtPDF BibTeX URN
Implications, conflicts, and reductions for Steiner trees
Integer Programming and Combinatorial Optimization: 22th International Conference, IPCO 2021, pp. 473-487, 2021 (preprint available as ZIB-Report 20-28)
Daniel Rehfeldt, Thorsten KochPDF (ZIB-Report) BibTeX DOI
SCIP-Jack: An exact high performance solver for Steiner tree problems in graphs and related problems
Modeling, Simulation and Optimization of Complex Processes HPSC 2018, LNCS, 2021
Daniel Rehfeldt, Yuji Shinano, Thorsten KochBibTeX DOI
A Physarum-Inspired Algorithm for Minimum-Cost Relay Node Placement in Wireless Sensor Networks
IEEE/ACM Transactions on Networking, 2020
Yahui Sun, Daniel Rehfeldt, Marcus Brazil, Doreen Thomas, Saman Halgamuge
BibTeX DOI
An exact high performance solver for Steiner tree problems in graphs and related problems
Modeling, Simulation and Optimization of Complex Processes HPSC 2018, Springer, 2020
Thorsten Koch, Daniel Rehfeldt, Yuji Shinano
BibTeX
BEAM-ME: Accelerating Linear Energy Systems Models by a Massively Parallel Interior Point Method
NIC Symposium 2020, pp. 345-352, Vol.50, NIC Series, 2020
Thomas Breuer, Michael Bussieck, Karl-Kien Cao, Fred Fiand, Hans-Christian Gils, Ambros Gleixner, Dmitry Khabi, Nils Kempke, Thorsten Koch, Daniel Rehfeldt, Manuel Wetzel
BibTeX
An Easy Way to Build Parallel State-of-the-art Combinatorial Optimization Problem Solvers: A Computational Study on Solving Steiner Tree Problems and Mixed Integer Semidefinite Programs by using ug[SCIP-*,*]-libraries
Proceedings of the 9th IEEE Workshop Parallel / Distributed Combinatorics and Optimization, pp. 530-541, 2019 (preprint available as ZIB-Report 19-14)
Yuji Shinano, Daniel Rehfeldt, Tristan Gally
PDF (ZIB-Report) BibTeX DOI
BEAM-ME: Ein interdisziplinärer Beitrag zur Erreichung der Klimaziele
OR-News : das Magazin der GOR, pp. 6-8, 2019
Thomas Breuer, Michael Bussieck, Frederik Fiand, Karl-Kiên Cao, Hans Christian Gils, Manuel Wetzel, Ambros Gleixner, Thorsten Koch, Daniel Rehfeldt, Dmitry Khabi
BibTeX
Building Optimal Steiner Trees on Supercomputers by Using up to 43,000 Cores
Integration of Constraint Programming, Artificial Intelligence, and Operations Research. CPAIOR 2019, pp. 529-539, Vol.11494, LNCS, 2019 (preprint available as ZIB-Report 18-58)
Yuji Shinano, Daniel Rehfeldt, Thorsten KochPDF (ZIB-Report) PDF (ZIB-Report) BibTeX DOI
Combining NP-Hard Reduction Techniques and Strong Heuristics in an Exact Algorithm for the Maximum-Weight Connected Subgraph Problem
SIAM Journal on Optimization, 29(1), pp. 369-398, 2019 (preprint available as ZIB-Report 17-45)
Daniel Rehfeldt, Thorsten KochPDF (ZIB-Report) BibTeX DOI
Reduction Techniques for the Prize-Collecting Steiner Tree Problem and the Maximum-Weight Connected Subgraph Problem
Networks, Vol.73, pp. 206-233, 2019 (preprint available as ZIB-Report 16-47)
Daniel Rehfeldt, Thorsten Koch, Stephen J. Maher
PDF (ZIB-Report) BibTeX DOI
Optimizing Large-Scale Linear Energy System Problems with Block Diagonal Structure by Using Parallel Interior-Point Methods
Operations Research Proceedings 2017, pp. 641-647, 2018 (preprint available as ZIB-Report 17-75)
Thomas Breuer, Michael Bussieck, Karl-Kien Cao, Felix Cebulla, Frederik Fiand, Hans Christian Gils, Ambros Gleixner, Dmitry Khabi, Thorsten Koch, Daniel Rehfeldt, Manuel Wetzel
PDF (ZIB-Report) BibTeX DOI
SCIP-Jack—a solver for STP and variants with parallelization extensions: An update
Operations Research Proceedings 2017, pp. 191-196, 2018 (preprint available as ZIB-Report 18-05)
Daniel Rehfeldt, Thorsten KochPDF (ZIB-Report) BibTeX
Transformations for the Prize-Collecting Steiner Tree Problem and the Maximum-Weight Connected Subgraph Problem to SAP
Journal of Computational Mathematics, 36(3), pp. 459-468, 2018 (preprint available as ZIB-Report 16-36)
Daniel Rehfeldt, Thorsten KochPDF (ZIB-Report) BibTeX DOI
A Generic Approach to Solving the Steiner Tree Problem and Variants
Master's thesis, Technische Universität Berlin, Thorsten Koch (Advisor), 2015
Daniel RehfeldtPDF BibTeX URN