6 papers
A hybrid solution approach for the Integrated Healthcare Timetabling Competition 2024
Daniela Guericke, Rolf van der Hulst, Asal Karimpour +2
In this work, we present the solution approach for the Integrated Healthcare Timetabling Competition 2024 submitted by Team Twente, which ultimately ranked third among the finalist…
Folding Mixed-Integer Linear Programs and Reflection Symmetries
Rolf van der Hulst
For mixed-integer linear programming and linear programming it is well known that symmetries can have a negative impact on the performance of branch-and-bound and linear optimizati…
The SCIP Optimization Suite 10.0
Christopher Hojny, Mathieu Besançon, Ksenia Bestuzheva +31
The SCIP Optimization Suite provides a collection of software packages for mathematical optimization, centered around the constraint integer programming (CIP) framework SCIP. This…
Implied Integrality in Mixed-Integer Optimization
Rolf van der Hulst, Matthias Walter
Implied-integer detection is a well-known presolving technique that is used by many Mixed-Integer Linear Programming solvers. Informally, a variable is said to be implied integer i…
A Row-wise Algorithm for Graph Realization
Rolf van der Hulst, Matthias Walter
Given a -matrix , the graph realization problem for asks if there exists a spanning forest such that the columns of are incidence vectors of paths in the forest…
The SCIP Optimization Suite 9.0
Suresh Bolusani, Mathieu Besançon, Ksenia Bestuzheva +28
The SCIP Optimization Suite provides a collection of software packages for mathematical optimization, centered around the constraint integer programming (CIP) framework SCIP. This…