Nadia Brauner opens the #EuroMIP25 workshop with a talk on the need to integrate environmental and societal issues into Operations Research. She argues that optimization must go beyond cost and efficiency to reflect real-world consequences. Two examples illustrate this:
#EuroMIP25 #orms
#EuroMIP25 #orms
July 1, 2025 at 11:11 AM
Nadia Brauner opens the #EuroMIP25 workshop with a talk on the need to integrate environmental and societal issues into Operations Research. She argues that optimization must go beyond cost and efficiency to reflect real-world consequences. Two examples illustrate this:
#EuroMIP25 #orms
#EuroMIP25 #orms
Johannes Thürauf presents work on robust network design for systems with nonconvex flows taking into account demand uncertainties. The goal is to ensure feasible operation under all load scenarios within a defined uncertainty set, where injections and withdrawals vary freely.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 1, 2025 at 11:21 AM
Johannes Thürauf presents work on robust network design for systems with nonconvex flows taking into account demand uncertainties. The goal is to ensure feasible operation under all load scenarios within a defined uncertainty set, where injections and withdrawals vary freely.
#EuroMIP25 #orms
#EuroMIP25 #orms
Nadia Brauner gave an inspiring lecture where she spoke about OR researchers ethical responsibilities, in context of two programs she worked on in her local area #EuroMIP25
July 1, 2025 at 8:24 AM
Nadia Brauner gave an inspiring lecture where she spoke about OR researchers ethical responsibilities, in context of two programs she worked on in her local area #EuroMIP25
The second session dives into technical work. Johannes Thürauf speaks on applications to robust adjustable network design with both theoretical and computational work #EuroMIP25
July 1, 2025 at 8:50 AM
The second session dives into technical work. Johannes Thürauf speaks on applications to robust adjustable network design with both theoretical and computational work #EuroMIP25
Results show tight gaps (often under 3%) and the ability to process much larger instances. Solving the anticlustering step exactly remains work in progress. #EuroMIP25 #orms
July 1, 2025 at 8:04 PM
Results show tight gaps (often under 3%) and the ability to process much larger instances. Solving the anticlustering step exactly remains work in progress. #EuroMIP25 #orms
Yelena Yuditsky presents recent advances on solving special classes of integer programs with bounded subdeterminants.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 2, 2025 at 11:26 PM
Yelena Yuditsky presents recent advances on solving special classes of integer programs with bounded subdeterminants.
#EuroMIP25 #orms
#EuroMIP25 #orms
And that's a wrap on #EuroMIP25! Three packed days of great talks and inspiring research.
Huge thanks to @sophie.huiberts.me , @matbesancon.bsky.social, the rest of the MIP committee and the local team for making this first edition a real success!
Huge thanks to @sophie.huiberts.me , @matbesancon.bsky.social, the rest of the MIP committee and the local team for making this first edition a real success!
July 3, 2025 at 4:22 PM
And that's a wrap on #EuroMIP25! Three packed days of great talks and inspiring research.
Huge thanks to @sophie.huiberts.me , @matbesancon.bsky.social, the rest of the MIP committee and the local team for making this first edition a real success!
Huge thanks to @sophie.huiberts.me , @matbesancon.bsky.social, the rest of the MIP committee and the local team for making this first edition a real success!
Frédéric Didier presents the MIP-related aspects of Google’s CP-SAT solver, with a focus on how linear relaxations, cuts, and presolve are integrated into a framework originally designed for pure integer problems.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 1, 2025 at 8:34 PM
Frédéric Didier presents the MIP-related aspects of Google’s CP-SAT solver, with a focus on how linear relaxations, cuts, and presolve are integrated into a framework originally designed for pure integer problems.
#EuroMIP25 #orms
#EuroMIP25 #orms
The talk ends with an example on the Hamming cube, where one of the parameters corresponds to counting return walks to the origin, followed by a few open questions on tightening bounds and extending the current framework.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 2, 2025 at 1:21 PM
The talk ends with an example on the Hamming cube, where one of the parameters corresponds to counting return walks to the origin, followed by a few open questions on tightening bounds and extending the current framework.
#EuroMIP25 #orms
#EuroMIP25 #orms
I'm proud to host the first European MIP Workshop today. 17 exciting talks about all aspects of mixed integer programming #EuroMIP25
July 1, 2025 at 6:09 AM
I'm proud to host the first European MIP Workshop today. 17 exciting talks about all aspects of mixed integer programming #EuroMIP25
Monique Laurent opens the second day of #EuroMIP25 with a presentation on Semidefinite approximations for bicliques and biindependent pairs. The focus is on measures involving the size and balance of independent sets in bipartite graphs such as their sum or product.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 2, 2025 at 1:12 PM
Monique Laurent opens the second day of #EuroMIP25 with a presentation on Semidefinite approximations for bicliques and biindependent pairs. The focus is on measures involving the size and balance of independent sets in bipartite graphs such as their sum or product.
#EuroMIP25 #orms
#EuroMIP25 #orms
Implemented in the GCG solver, the approach shows strong improvements, particularly on instances with large root gaps. Rönnberg concludes with potential research directions, specifically on optimality conditions and the pricing subproblem. #EuroMIP25
July 1, 2025 at 4:03 PM
Implemented in the GCG solver, the approach shows strong improvements, particularly on instances with large root gaps. Rönnberg concludes with potential research directions, specifically on optimality conditions and the pricing subproblem. #EuroMIP25
Alex Lassota is speaking about FPT algorithms for MIP with these awesome fun and clear slides #EuroMIP25
July 1, 2025 at 9:18 AM
Alex Lassota is speaking about FPT algorithms for MIP with these awesome fun and clear slides #EuroMIP25
Laurent then dives into some implementation choices and defines the concepts of primal and dual superbasics. The overall trade-off promotes both speed and numerical stability.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 2, 2025 at 11:59 PM
Laurent then dives into some implementation choices and defines the concepts of primal and dual superbasics. The overall trade-off promotes both speed and numerical stability.
#EuroMIP25 #orms
#EuroMIP25 #orms
Stefan Kuhlmann’s talk focused on Sparse Integer Solutions and Approximations. This is an important topic both theoretically and in applications where nonzero entries can represent costly decisions or changes.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 3, 2025 at 3:39 PM
Stefan Kuhlmann’s talk focused on Sparse Integer Solutions and Approximations. This is an important topic both theoretically and in applications where nonzero entries can represent costly decisions or changes.
#EuroMIP25 #orms
#EuroMIP25 #orms
Leona Gottwald talks about which components are truly necessary for delivering good performance in modern MIP solvers, drawing from her development experience of HiGHS (and others).
#EuroMIP25 #orms
#EuroMIP25 #orms
July 2, 2025 at 3:29 PM
Leona Gottwald talks about which components are truly necessary for delivering good performance in modern MIP solvers, drawing from her development experience of HiGHS (and others).
#EuroMIP25 #orms
#EuroMIP25 #orms
EuroMIP25 starting today! 📐 ⬜ ✂️ 🌲 🌿
I'm proud to host the first European MIP Workshop today. 17 exciting talks about all aspects of mixed integer programming #EuroMIP25
July 1, 2025 at 6:27 AM
EuroMIP25 starting today! 📐 ⬜ ✂️ 🌲 🌿
Marouane is live tweeting all #EuroMIP25 talks, follow him to stay up to date
Alexandra Lassota presents an overview of how Integer Programming meets Fixed-Parameter Tractability (FPT), showing how structural parameters can make hard problems tractable.
July 1, 2025 at 1:34 PM
Marouane is live tweeting all #EuroMIP25 talks, follow him to stay up to date
Across all cases, Lassota highlights how careful structural analysis opens pathways to tackle IPs more effectively when key problem structures are exploited. #EuroMIP25
July 1, 2025 at 12:57 PM
Across all cases, Lassota highlights how careful structural analysis opens pathways to tackle IPs more effectively when key problem structures are exploited. #EuroMIP25
Thanks a lot for posting this coverage of the #EuroMIP25 workshop. This is a great service for all who cannot participate in inaccessible conferences but still want to feel connected to the MIP community.
July 3, 2025 at 5:01 PM
Thanks a lot for posting this coverage of the #EuroMIP25 workshop. This is a great service for all who cannot participate in inaccessible conferences but still want to feel connected to the MIP community.
That's it for this #EuroMIP25. Thanks everyone for making this workshop a success
July 3, 2025 at 1:07 PM
That's it for this #EuroMIP25. Thanks everyone for making this workshop a success
Johannes Thurauf presents joint work with Martin Schmidt on an Exact Method for Nonlinear Network Flow Interdiction Problems, modeled as max–min bilevel programs with nonconvex, nonlinear flow constraints on the follower side.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 2, 2025 at 3:59 PM
Johannes Thurauf presents joint work with Martin Schmidt on an Exact Method for Nonlinear Network Flow Interdiction Problems, modeled as max–min bilevel programs with nonconvex, nonlinear flow constraints on the follower side.
#EuroMIP25 #orms
#EuroMIP25 #orms
François Lamothe explores strengthening linear relaxations for MIPs by combining Dantzig-Wolfe and Fenchel decompositions.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 3, 2025 at 12:02 AM
François Lamothe explores strengthening linear relaxations for MIPs by combining Dantzig-Wolfe and Fenchel decompositions.
#EuroMIP25 #orms
#EuroMIP25 #orms
Meike Neuwohner presents a characterization of total unimodularity for disjoint hypergraphs, , i.e. hypergraphs whose hyperedges of size at least four are pairwise disjoint.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 1, 2025 at 7:27 PM
Meike Neuwohner presents a characterization of total unimodularity for disjoint hypergraphs, , i.e. hypergraphs whose hyperedges of size at least four are pairwise disjoint.
#EuroMIP25 #orms
#EuroMIP25 #orms
Lucas Létocart’s wraps up with a dive into Decomposition Methods for Quadratic Programming problems, both convex and non-convex.
#EuroMIP25 #orms
#EuroMIP25 #orms
July 3, 2025 at 3:55 PM
Lucas Létocart’s wraps up with a dive into Decomposition Methods for Quadratic Programming problems, both convex and non-convex.
#EuroMIP25 #orms
#EuroMIP25 #orms