From June 15 to 26, 2026, the Research Campus MODAL at the Zuse Institute Berlin (ZIB) hosted the hybrid PEREGRINE PIPS-IPM++ Hackathon. Part of the German Federal Ministry for Economic Affairs and Energy (BMWE) funded (03EI1082A-B) PEREGRINE project, the two-week event brought together optimization experts and developers to expand the ecosystem of the parallel open-source interior point solver, PIPS-IPM++. The central goal of the hackathon was to increase the accessibility of PIPS-IPM++ beyond its existing GAMS implementation. Participants were challenged...Read More
Gennesaret Kharistio Tjusila, Alexander Hoen, Nils-Christian Kempke, Gioni Mexi, Timo Berthold, Ambros Gleixner, Thorsten Koch, and Sebastian Pokutta won the 2026 Land-Doig MIP Competition, announced at the Mixed-Integer Programming Workshop 2026. The Land-Doig MIP Competition is held yearly in honor of Ailsa H. Land and Alison G. Harcourt (née Doig), the inventors of the branch-and-bound algorithm for mixed-integer programming (MIP). It aims to encourage the development of novel practical techniques for MIP solving. The theme of this year’s Land-Doig MIP...Read More
Berenike Masing successfully defended her PhD thesis on “Enriched Periodic Timetabling” at the Institute of Mathematics at Freie Universität Berlin on April 29, 2026. The thesis makes substantial progress on the topic of periodic timetabling in public transit with the periodic event scheduling problem (PESP) as its central mathematical framework. It strengthens the theoretical foundations of PESP, improves the computational performance of this model, and enhances its modeling scope and practical applicability by including aspects of passenger routing and infrastructure...Read More
