3 papers
math.OC2021
Generative deep learning for decision making in gas networks
Lovis Anderson, Mark Turner, Thorsten Koch
A decision support system relies on frequent re-solving of similar problem instances. While the general structure remains the same in corresponding applications, the input paramete…
math.OC2019
First Experiments with Structure-Aware Presolving for a Parallel Interior-Point Method
Ambros Gleixner, Nils-Christian Kempke, Thorsten Koch +2
In linear optimization, matrix structure can often be exploited algorithmically. However, beneficial presolving reductions sometimes destroy the special structure of a given proble…
math.OC2018
Reduction-based exact solution of prize-collecting Steiner tree problems
Daniel Rehfeldt, Thorsten Koch
The prize-collecting Steiner tree problem PCSTP is a well-known generalization of the classical Steiner tree problem in graphs, with a large number of practical applications. It at…