Martin Schmidt
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schmaidt.bsky.social
Martin Schmidt
@schmaidt.bsky.social
160 followers 120 following 170 posts
This is about craftbeer & homebrewing, sourdough bread baking, mathematical optimization, OR, photography, cooking, and random rant!
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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 for having us! Again, it was a pleasure!!
Reposted by Martin Schmidt
The 5th EUROYoung Workshop started yesterday! We were amazed by the incredible talk given by our first plenary speaker, @schmaidt.bsky.social #EUROYoung2025 #orms
Thanks a lot for the invitation! It was and is a great pleasure!
German News Wrap-Up:

„Wir verschieben die Debatte, weil wir uns nicht einig sind!“

Es grüßt der demokratische 💀

oh boy …
SCHMAIDT'S NERD BREWING presents ... VIENNA CALLING (Beer Festival Trier 2025 Edition)

A bit more than a week to go!
Once upon a time in Stockholm‘s underground.

Let’s continue this series of metro station #photos from #sweden with Solna Centrum Station!
Once upon a time in Stockholm‘s underground!

A series about the #Stockholm metro stations was on my #photography todo list since 2022 when I was in this wonderful capital of #Sweden for the first time!

This year, I finally found the time and here‘s the #photo of the first stop: #Akalla!
@yasminebeck.bsky.social is continuing her PhD-prize-collecting conference tour!

This time the PhD prize of the German OR society!

Congratulations! 💪
You want to use the BOBILib (bobilib.org) instances to test your new bilevel optimization solver?

And you don't want to code your own parser?

No problem, use this one: gitlab.uni-trier.de/nlopt/mps-au...!
BOBILib: Bilevel Optimization (Benchmark) Instance Library
bobilib.org
Spread the word! 👍
Final deadline extension for the

International Workshop on Algorithmic Optimization

at @unitrier.bsky.social, Germany, which takes place

September 23-26.

Registration is open until Friday, August 15! Don't miss it!

alop.uni-trier.de/event/intern...
International Workshop on Algorithmic Optimization | ALOP
alop.uni-trier.de
Motivated by today's US NEIPAs I wanted to have some grassy notes & dankness. I don't want to say that this is the masterpiece of dankness for sure, but I think it goes into the right direction.

#homebrew #brewing #nerd #brew #craft #beer #craftbeer #NewEnglandIPA #IPA #neipa #hazyipa #hazy
SCHMAIDT'S NERD BREWING ... proudly presents ... HOLLE'S SUMMER JUICE 2025

I am slowly getting to where I want my New England IPA journey to head to. A bright-yellow-milky-hazy appearance, a stable and super-white head.

#homebrew #brewing #brew #craft #beer #craftbeer #IPA #neipa #hazyipa #hazy
I like it. And I will come back for sure when the construction crane is gone 🙄

#Zurich #travel #photography #travelphotos #switzerland #bluehour #goldenhour #cityscape #Zürich #Schweiz

More on www.schmaidt.de!
Once upon a time in Zurich!

I don’t know why but I ignored the country for far too long. But this year, I had the chance to visit Switzerland 🇨🇭 twice and Zurich once.
Once upon a time in #Annecy

For sure one of the most positive surprises in our #travel life so far — a beauty with a nice old town, #mountains, a beautiful #lake, good restaurants, and even some nice #craftbeer pubs 😉

#france #france🇫🇷 #travel #travelphoto #street #photography #streetphotography
Once upon a time in Zurich, Switzerland

The Negrellisteg was on my #photography todo list since quite some time. This year, I was finally able to capture it!

More of such stuff you'll find at www.schmaidt.de.

#photo #traveling #travel #Zurich #Zürich #Switzerland #Schweiz #architecture
Yet another paper alert: Our paper "Mixed-Integer #Bilevel Optimization with Nonconvex Quadratic Lower-Level Problems: #Complexity and a Solution Method" (jointly with Immanuel Bomze and Andreas Horländer) is published in the Journal of Global #Optimization.

link.springer.com/article/10.1...