“MIP approaches are a dead end.” That‘s a reviewer comment I recently received on a paper about traffic modeling. So, naturally, I teamed up to write another MIP paper on traffic networks. Here’s our new #ORMS preprint: optimization-online.org?p=34014 Dead end? Judge for yourselves 😉

Chapter 6 of the upcoming book on #bilevel #optimization: General properties of mixed-integer linear bilevel problems. Classic relaxations, infeasibility via lower-level unboundedness and how to test this up-front, existence of solutions, the refinement problem, complexity, reformulations, ...

The show must go on ... final proof-reading of Chapter 5: "Algorithms for Linear Bilevel Problems". We discuss three main methods: (i) The "historic" and simplex-inspired Kth-best algorithm (ii) Complementarity-Based Branch-and-Bound (iii) Penalty Alternating Direction Method

📢 Plenary speakers for #ISMP2027 We are pleased to announce the plenaries for the 26th International Symposium on Mathematical Programming: Daniel Bienstock Jim Luedtke @optimizer.bsky.social Thomas Rothvoss Katya Scheinberg Defeng Sun 🗓️ July 25–30, 2027
 📍Amsterdam 🔗 ismp2027.mathopt.nl #MOS

#Bilevel book proof-reading update. Chapter 3: Single-level reformulations for convex lower-level problems ... A few keywords: Optimal-value function, KKT, strong-duality, big-M, McCormick, IIC, local vs. global solutions, SOS1 conditions, ...

📢 #ISMP2027 comes to Amsterdam! The 26th International Symposium on Mathematical Programming will be held July 25–30, 2027. Join researchers from around the world to discuss advances, challenges, and opportunities in the theory and practice of mathematical optimization. 🔗 ismp2027.mathopt.nl #MOS

Join us on March 5 for my #orms talk about uncertain #bileveloptimization!

Free Tuesday afternoon? Then I have something for you! 🚀 We're launching the #BOS Webinar Series—a bi-weekly seminar on theoretical, computational, and applied #BilevelOptimization 📆 Tuesdays at 4 pm CET via MS Teams
 🎙️ 40- or 2x20-minute talks + discussion
 🔗 bileveloptimization.org/bos_webinar

Proof-reading chapter 2: Optimistic vs pessimistic #bilevel problems. What is a pessimistic problem? Why is it different? And why is it actually not as different as many people thought for a long time … #orms #optimization

The 6th #EUROYoungWorkshop is coming to #Lugano, Switzerland 🇨🇭| Oct 14-16, 2026 Join us for 3 days of talks, networking & social events—inspiring plenaries and lakeside charm await! Abstract submission: 10 Mar – 15 Apr Registration: 1 May – 1 Jun 🔗 euroyoung.eu/lugano2026

Proof-reading our #bilevel #optimization book. Today: Chapter 1 about what it is all about 😉 From the content: many formal and informal examples such as pricing, toll setting, energy markets, critical infrastructure defense, interdiction problems (max-flow & knapsack) ... plus ... 1/2

A new book is coming: "Linear and Mixed-Integer Bilevel Optimization: Theory and Algorithms" by Ivana Ljubić, @yasminebeck.bsky.social, and myself. Let's start the last round of proof-reading! Stay tuned for regular updates on its content. #orms #bilevel #optimization #algorithms #textbook

Excited to be part of this season’s MOSS speaker lineup and to present what I’ve been working on lately. Don’t miss out on MOSS every first Thursday of the month, looking forward to seeing many of you there! #orms

The plenary speakers of the #ICBO2026 are confirmed. Amy Greenwald, Brown University, US Leonardo Lozano, University of Cincinnati, US Shoham Sabach, Cornell University, US More information you can find here: bileveloptimization.org/icbo/2026/in.... See you in Pittsburgh this year!

Proof-reading our new book on bilevel optimization. The content is almost finalized … Most likely, you will find it online in 2026! By the way: our = @yasminebeck.bsky.social, Ivana Ljubic, and myself! Follow here for more updates during the next weeks and months!

I cannot think of a better way to start the new year! Join us on January 27, 2026, for #ORAwarenessDay #orms

The end of the year finale EURO WISDOM #YW4OR Webinar of 2025! Great talks by @yasminebeck.bsky.social, Dr Monaci, @jasoneramirez.bsky.social and great discussion questions by @vidalthi.bsky.social Recording soon on YouTube! #WomenInSTEM

A while ago, I finished a language course on #Duolingo and was *deeply* disappointed that Duo, the owl, did NOT dance for me. But today… dreams come true 🦉💃 Duo is finally dancing! Apparently it just needed some time to warm up 🇳🇱

Today, we had the last EURO WISDOM YW4OR Webinar of 2025! 🙏 Dr Beck @yasminebeck.bsky.social, Dr Monaci, Dr Ramirez Ayerbe @jasoneramirez.bsky.social for the presentations! 🙏 Prof Vidal @vidalthi.bsky.social for the questions! Recording soon in YouTube! @euro-wisdom.bsky.social #WomenInSTEM

Save the date! The International Conference on Bilevel Optimization will take place from August 2-5, 2026, at the CMU and the University of Pittsburgh, USA! Here's all what you need to know right now: bileveloptimization.org/icbo/2026/in...

#YW4OR call for applications is still open #orms, please apply using this form (deadline November 14): 👇 docs.google.com/forms/d/e/1F...

This was hard work but now we are happy! The #BOBILib paper has today been accepted for publication in Mathematical Programming Computation! Here's the final version of the preprint: optimization-online.org/wp-content/u...! And here's the website bobilib.org! Spread the word and use it! :-)

Thanks to the best supervisor! 🙏 If you are interested, feel free to check out my award-winning thesis. It’s only ~300 pages 😅 TL; DR: If you are attending #OR2025 in Bielefeld, you can still join me today at TC-4 in H6, where I will present (some of) the results. #orms @unitrier.bsky.social

That's it for this #EuroMIP25. Thanks everyone for making this workshop a success

I couldn’t have asked for better co-authors, collaborators, or mentors, thank you for everything!

🟧 EURO Best EJOR Paper Award 2025 – Review Category #EABEP2025 | Sponsored by Elsevier 🏆 A Survey on Bilevel Optimization Under Uncertainty 👥 Yasmine Beck | Ivana Ljubic | Martin Schmidt 📍 Trier Univ. & ESSEC Business School 🔗 buff.ly/h8qemcB #EJOR #Elsevier

🟦 EURO Doctoral Dissertation Award 2025 – Winner! 🏆 Yasmine Beck (ESSEC) 𝗠𝗶𝘅𝗲𝗱-𝗜𝗻𝘁𝗲𝗴𝗲𝗿 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗧𝗲𝗰𝗵𝗻𝗶𝗾𝘂𝗲𝘀 𝗳𝗼𝗿 𝗥𝗼𝗯𝘂𝘀𝘁 𝗕𝗶𝗹𝗲𝘃𝗲𝗹 𝗣𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝘄𝗶𝘁𝗵 𝗛𝗲𝗿𝗲-𝗮𝗻𝗱-𝗡𝗼𝘄 𝗙𝗼𝗹𝗹𝗼𝘄𝗲𝗿𝘀 🔗 Abstract: lnkd.in/d3i_9Smw #EDDA2025 #EURO2025

🟦 EURO Doctoral Dissertation Award 2025 – Winner! 🏆 Yasmine Beck (ESSEC) 𝗠𝗶𝘅𝗲𝗱-𝗜𝗻𝘁𝗲𝗴𝗲𝗿 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗧𝗲𝗰𝗵𝗻𝗶𝗾𝘂𝗲𝘀 𝗳𝗼𝗿 𝗥𝗼𝗯𝘂𝘀𝘁 𝗕𝗶𝗹𝗲𝘃𝗲𝗹 𝗣𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝘄𝗶𝘁𝗵 𝗛𝗲𝗿𝗲-𝗮𝗻𝗱-𝗡𝗼𝘄 𝗙𝗼𝗹𝗹𝗼𝘄𝗲𝗿𝘀 🔗 Abstract: lnkd.in/d3i_9Smw #EDDA2025 #EURO2025

🟧 EURO Best EJOR Paper Award 2025 – Review Category #EABEP2025 | Sponsored by Elsevier 🏆 A Survey on Bilevel Optimization Under Uncertainty 👥 Yasmine Beck | Ivana Ljubic | Martin Schmidt 📍 Trier Univ. & ESSEC Business School 🔗 buff.ly/h8qemcB #EJOR #Elsevier

🎉 Dear #EUROYoungers! The #EURO2025 conference is just around the corner, and we’re thrilled to invite you to a special panel: 🗣 “Communicating OR: Strategies for Engaging Stakeholders, Academics & the Public” 📅 Tue, June 24 🕝 14:30–16:00 📍Esther Simpson 1.01 🧵👇 (1/5)

Thanks @euroonline.bsky.social, I feel very honored to be selected as one of the four finalist for the #EDDA2025

Where it started vs. how it’s going… After ~2.5 years, it’s finally done: Our #orms paper on heuristics for Γ-robust #bilevel problems (with Ivana Ljubić and @schmaidt.bsky.social) is published online in @informs.bsky.social Journal on Computing! Here it is: pubsonline.informs.org/doi/10.1287/...

You're not yet sure what you should do at the end of September 2025? Come to our #ALOP workshop at @unitrier.bsky.social. #ALOP is in its 9th year. After 7 international workshops & 8 autumn schools, this will be our final international workshop hosted by #ALOP: alop.uni-trier.de/event/intern...

Join us for the next (Junior) Robust Optimization Webinar this Friday, March 7, at 15:00 (CET). Speaker 1: Dorothee Henke (University of Passau) Speaker 2: @yasminebeck.bsky.social (ESSEC Business School) #ROW

Finally 🥳 #orms #bilevel #bileveloptimization

Don’t miss out on the crème de la crème of #orms at #EUROYoung2025 in Naples!

Can #bilevel #optimization help to solve challenging #robust optimization problems? Maybe … here’s our first numerical study on this topic: "Solving Decision-Dependent Robust Problems as Bilevel Optimization Problems" Jointly with H. Lefebvre, S. Stevens, and J. Thürauf. tinyurl.com/3nxmjt74

I am excited to share that I received the 2024 INFORMS Journal on Computing Meritorious Reviewer Award @informs.bsky.social! Congratulations also to my fellow awardees: pubsonline.informs.org/doi/10.1287/..., keep up the great work! #orms

It's the International Day of Women and Girls in Science. How are you marking the day? (#WomenInSTEM #STEM #InternationalDayofWomenAndGirlsInScience)

📣 Paper news: Our #orms paper on heuristics for Gamma-robust #bilevel problems (jointly with Ivana Ljubić and @schmaidt.bsky.social) has been accepted for publication in INFORMS Journal on Computing @informs.bsky.social. You can find the details here: optimization-online.org?p=26186

With this transition, we are thrilled to introduce the new board members who will carry forward the mission of the EURO Young Forum: Coordinators: Marta Baldomero Naranjo, Andrea Mancuso Board: @yasminebeck.bsky.social, Laura Davila-Pena, Alan Osorio-Mora (3/5)

Kicking off my Bluesky journey with some news: I am excited to share that I am one of the Young Women for OR 2024 awardees! #YW4OR #orms