12 citations · 13 across the 4 of their papers we have counts for
4 papers
Handling Sub-symmetry in Integer Programming using Activation Handlers
Christopher Hojny, Tom Verhoeff, Sten Wessel
Symmetry in integer programs (IPs) can be exploited in order to reduce solving times. Usually only symmetries of the original IP are handled, but new symmetries may arise at some n…
Integer Programming Models for Round Robin Tournaments
Jasper van Doornmalen, Christopher Hojny, Roel Lambers +1
Round robin tournaments are omnipresent in sport competitions and beyond. We propose two new integer programming formulations for scheduling a round robin tournament, one of which…
A flow-based formulation for parallel machine scheduling using decision diagrams
Daniel Kowalczyk, Roel Leus, Christopher Hojny +1
We present a new flow-based formulation for identical parallel machine scheduling with a regular objective function and without idle time. The formulation is constructed with the h…
The SCIP Optimization Suite 8.0
Ksenia Bestuzheva, Mathieu Besançon, Wei-Kun Chen +32
The SCIP Optimization Suite provides a collection of software packages for mathematical optimization centered around the constraint integer programming framework SCIP. This paper d…