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Paul Rubin

@parubin.bsky.social
157 followers 157 following 11 posts

Apostate mathematician, operations research, optimization, Pro Bono Analytics, inarticulate Java & R coder

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Reposted by Paul Rubin
Thiago Serra @thserra.bsky.social · 24/03/2026
We are now accepting applications for the 5th FutureBAProf workshop at the University of Iowa for advanced PhD students and postdocs. This is the one and only workshop that demystifies academic careers in business analytics and helps participants prepare for the job market and careers in this field.
tippie.uiowa.edu
Business Analytics FutureBAProf - About
FutureBAProf is a one-and-a-half-day workshop designed to demystify the field of business analytics while supporting emerging scholars preparing for the academic job market.
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Paul Rubin @parubin.bsky.social · 09/03/2026
There is a new Operations Research Discord server at discord.gg/RcUfeV2F. The old OR Discord server is still up, but it no longer has an owner and has been targeted by spam bots, so we are encouraging people in the #operations-research community to switch to the new server.
discord.gg
Join the Operations Research Discord Server!
Check out the Operations Research community on Discord - hang out with 6 other members and enjoy free voice and text chat.
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Paul Rubin @parubin.bsky.social · 04/03/2026
Thiago Serra posted on his blog what I think are some useful tips on doing presentations. thiagoserra.com/2026/03/03/m...
thiagoserra.com
My presentation philosophy
There are many things about preparing and presenting slides that I keep repeating to students, so I figured that I should put them down in writing. I do think that they help a lot. (And if I am doi…
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Alexander Helber @ahelber.bsky.social · 17/02/2026
Question for #orms people: do you know any problem-specific cutting planes that are not too hard to explain and separate and would improve performance compared to a baseline MIP solver (e.g. SCIP, Gurobi)? Asking because its more fun for students if they implement something and it helps performance
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Randy Cassingham @thisistrue.com · 01/11/2025
Now I'm a believer.
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Paul Rubin @parubin.bsky.social · 12/10/2025
For my faculty friends trying to sort out how to cope with AI use by students, I think this post by @lauraalbertphd.bsky.social is dead on. punkrockor.com/2025/10/09/c...
punkrockor.com
Culture eats AI strategy for breakfast: why professors should focus on culture instead of consequences when confronting generative AI in the classroom
The rise of generative AI (GenAI) has been swift, leaving many of us in higher education scrambling to adapt. We have focused on creating new policies and redesigning assignments, but it can feel l…
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Aleksandr Kazachkov @akazachk.bsky.social · 15/06/2025
It was an honor and a pleasure to chair the 2025 Mixed Integer Programming Workshop from June 2 to 6 in Minneapolis, MN. For everyone that missed it, we missed you too but you may catch up on the talk/poster details and competition winners via mixedinteger.org/2025 and the #mip2025 workshop program.
mixedinteger.org
Mixed Integer Programming Workshop 2025
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Matthias Köppe @mkoeppe.bsky.social · 03/06/2025
The Mathematics Jobs Wiki is open for the 2025–2026 season. notable.math.ucdavis.edu/wiki/Mathema... #MathSky
notable.math.ucdavis.edu
Mathematics Jobs Wiki - NotableMathWiki
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Randy Cassingham @thisistrue.com · 12/05/2025
Teddy knew what he was talking about.
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Paul Rubin @parubin.bsky.social · 06/05/2025
An interesting new website just launched for folks in the optimization community. optimization4all.com
optimization4all.com
Optimization Expertise Hub
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Randy Cassingham @thisistrue.com · 03/05/2025
This quote seems to harken some public figure, but for the life of me I can't think of who it might be.... (h/t to 7Takeaways [.com]. Worth a free subscription.)
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NPR @npr.org · 25/04/2025
Matthew Hiller started making anti-Elon Musk stickers for Teslas after Musk's X takeover. He's made six figures selling them.
npr.org
Meet the man who made six figures selling anti-Elon Musk Tesla stickers
Matthew Hiller started making anti-Elon Musk stickers for Teslas after Musk's X takeover. He's made six figures selling them.
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Reposted by Paul Rubin
The Onion @theonion.com · 21/04/2025
Pete Hegseth: ‘There Are No State Secrets In A Healthy Relationship’
theonion.com
Pete Hegseth: ‘There Are No State Secrets In A Healthy Relationship’
WASHINGTON—Staunchly defending his decision to share sensitive military data in messages to his wife, Defense Secretary Pete Hegseth told reporters Monday, “There are no state secrets in a healthy rel...
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Peter Baker @peterbakernyt.bsky.social · 18/04/2025
During the campaign, Trump said it would be so easy to end the war in Ukraine he could do it in 24 hours and in fact would do it before being inaugurated. Three months after his inauguration, his chief diplomat now says it is so hard he may stop trying. www.nytimes.com/2025/04/18/w...
nytimes.com
Rubio Says U.S. to ‘Move On’ From Ukraine Peace Efforts if No Progress Soon
“If it is not possible to end the war in Ukraine, we need to move on,” Secretary of State Marco Rubio said as he departed meetings in Paris.
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Randy Cassingham @thisistrue.com · 13/04/2025
My dad's mom died when I was 15ish. I didn't use my mom's mother as an excuse; instead, I sat with her as she died several years after I graduated college. But I do remember "my grandmother died" being used by several other students as an excuse during my college years. Some 'died' several times!
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Paul Rubin @parubin.bsky.social · 05/02/2025
Thiago Serra has posted a list of summer schools on OR-related topics. thiagoserra.com/2025/02/04/s...
thiagoserra.com
Summer 2025 schools on algorithms, machine learning, mathematics, optimization, and other relevant topics in operations research
After a 5-year hiatus and finding out that this was helpful to many people, I am reviving the list of schools. The purpose of organizing this is to help graduate students find a summer school to ga…
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Anna Nagurney @annanagurney.bsky.social · 26/12/2024
Today, the daughters of Dr. Marguerite Frank wrote me that she passed away on Dec. 11 at the age of 97. I had written a post about her & Ailsa Land when they turned 93: annanagurney.blogspot.com/2021/03/cele... No obituary yet. Marguerite was a friend. I helped with a paper award in her honor. #orms
annanagurney.blogspot.com
Celebrating Two Amazing Female Operations Researchers, Both 93 Years Old, for Their Contributions to Algorithms
Since this blogpost was published, sadly, Professor Ailsa Land passed away on May 16, 2021. Please refer to this obituary posted on the Lond...
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Randy Cassingham @thisistrue.com · 24/12/2024
Santa may be late this year.
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Reposted by Paul Rubin
Randy Cassingham @thisistrue.com · 24/12/2024
Santa may be late this year.
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Reposted by Paul Rubin
Emily Tucker @emilyltucker.bsky.social · 08/11/2024
New starter pack if you're looking for the #orms community on here: go.bsky.app/SvBND16 Also if you have recommendations of people to add, feel free to send them my way.
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Paul Rubin @parubin.bsky.social · 16/07/2024
Erwin Kalvelagen posted slides for a talk he gave about large scale #optimization models. It contains some interesting stuff. yetanothermathprogrammingconsultant.blogspot.com/2024/07/prac...
yetanothermathprogrammingconsultant.blogspot.com
Practical Large-Scale Modeling: Sparsity
Presentation at USDA-ERS Model Summit 2024.
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Paul Rubin @parubin.bsky.social · 17/04/2024
Random thought for the day: a completely logical AI program would probably crash trying to fill out a US federal tax return; but an LLM prone to hallucination would have no trouble with it.
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Paul Rubin @parubin.bsky.social · 13/04/2024
Interesting post by Nate Brixius about a mixed integer programming model ahead of its time. nathanbrixius.wordpress.com/2024/04/13/d...
nathanbrixius.wordpress.com
Don Knuth’s MIP, 64 years later
In 1960, the famed computer scientist Don Knuth wrote a technical paper in which he considered an integer programming model for minimizing memory access latency of an IBM 650. I've included a screensh...
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