Jim Luedtke
@optimizer.bsky.social
410 followers 170 following 25 posts
Professor, Stochastic and Integer Optimizer, Dad
Posts Media Videos Starter Packs
optimizer.bsky.social
What an opportunity! Where can an applicant learn more about it and submit their application?
Reposted by Jim Luedtke
kevinmkruse.bsky.social
"Republicans run the entire government but can't keep it open"

That's it. That's the whole story.
jfallows.bsky.social
Yes. (And still getting "standoff" BS and "who will blink first" and "who will voters blame" from news.)

Trump and MAGA control the *entire* government. It's a simple fact:
- White House
- Senate
- House
- Scotus
- OMB (to the hilt)
- Every regulatory agency

They're in command. It's on them.
obriensci.bsky.social
I do not understand why they cannot get the headlines right.

Just follow the gop playbook!

“Repubs control it all! The shutdown is on them!”

As nauseum.

Don’t lead with the nuance.
Reposted by Jim Luedtke
nycsouthpaw.bsky.social
settings > content & media > autoplay video & gifs = off
Reposted by Jim Luedtke
stella.to
📢 New in JMLR (w @rajivsambharya.bsky.social)! 🎉 Data-driven guarantees for classical & learned optimizers via sample bounds + PAC-Bayes theory.

📄 jmlr.org/papers/v26/2...
💻 github.com/stellatogrp/...
Reposted by Jim Luedtke
thserra.bsky.social
I wrote a tutorial inspired by my experience conducting research with undergraduate students who knew how to code, but were yet to learn about optimization.

What is the Best Way to Do Something? A Discreet Tour of Discrete Optimization: github.com/thserra/disc...
GitHub - thserra/discreet: What is the Best Way to Do Something? A Discreet Tour of Discrete Optimization
What is the Best Way to Do Something? A Discreet Tour of Discrete Optimization - thserra/discreet
github.com
Reposted by Jim Luedtke
mcopelov.bsky.social
Nobody covers Wisconsin politics better than @danshafer.bsky.social & you should take advantage of this great deal
Reposted by Jim Luedtke
chrischirp.bsky.social
Israel had every right to respond to Hamas' 7 Oct 2023 attacks.

But this has NOT been a proportionate response: it has been an escalating campaign of war crimes, crimes against humanity & genocide as the world just watches.

It is fair to hold Israel to a higher standard than Hamas terrorists. 5/5
Reposted by Jim Luedtke
thserra.bsky.social
The #FutureBAProf workshop continues with Tallys Yunes, the 22-time winner of University of Miami Herbert Business School Excellence in Teaching award, sharing about teaching in business schools.

1/2
Reposted by Jim Luedtke
mitcee.bsky.social
A new study led by Prof. Cathy Wu and colleagues reveals that eco-driving measures, such as dynamically adjusting vehicle speeds to reduce stopping and excessive acceleration, can cut carbon emissions between 11 and 22 percent. news.mit.edu/2025/eco-dri...
Eco-driving measures could significantly reduce vehicle emissions
Implementing co-driving techniques, like the use of intelligent speed controls to mitigate congestion at traffic lights, can significantly reduce intersection carbon dioxide emissions without…
news.mit.edu
optimizer.bsky.social
Fascinating video about the history of linear programming
sophie.huiberts.me
This is about one of my greatest inspirations. It would mean a lot to me if you gave it a watch
Lessons from Paula Harris / by Sophie Huiberts
YouTube video by Mixed Integer Programming
www.youtube.com
Reposted by Jim Luedtke
nkgarg.bsky.social
New piece, out in the Sigecom Exchanges! It's my first solo-author piece, and the closest thing I've written to being my "manifesto." #econsky #ecsky
arxiv.org/abs/2507.03600
Screenshot of paper abstract, with text: "A core ethos of the Economics and Computation (EconCS) community is that people have complex private preferences and information of which the central planner is unaware, but which an appropriately designed mechanism can uncover to improve collective decisionmaking. This ethos underlies the community’s largest deployed success stories, from stable matching systems to participatory budgeting. I ask: is this choice and information aggregation “worth it”? In particular, I discuss how such systems induce heterogeneous participation: those already relatively advantaged are, empirically, more able to pay time costs and navigate administrative burdens imposed by the mechanisms. I draw on three case studies, including my own work – complex democratic mechanisms, resident crowdsourcing, and school matching. I end with lessons for practice and research, challenging the community to help reduce participation heterogeneity and design and deploy mechanisms that meet a “best of both worlds” north star: use preferences and information from those who choose to participate, but provide a “sufficient” quality of service to those who do not."
Reposted by Jim Luedtke
austinlbuchanan.bsky.social
“Staying sane on the tenure track” by Shane Henderson. Written in 2008 but still good advice for junior faculty. people.orie.cornell.edu/shane/pubs/S... #orms
people.orie.cornell.edu
Reposted by Jim Luedtke
profgrimmer.bsky.social
Yesterday I posted a maths puzzle that AIs all failed at (thanks for running the premium versions @xy-han.bsky.social and Ernest Ryu). The puzzle just needs elementary reasoning about p-norm balls (third row on my shelf below).

This thread gives the puzzle, solution, and a 3D printed demo :)
Reposted by Jim Luedtke
willoremus.com
Harrowing lead story and image on the Washington Post homepage right now. www.washingtonpost.com/world/2025/0...
Screenshot of Washington Post homepage. Lead headline is: "Mass starvation stalks Gaza as deaths from hunger rise." 

Lead image is of a woman in Gaza holding an almost impossibly emaciated child
optimizer.bsky.social
Congratulations to Dr. Ashley Peper for successfully defending her PhD dissertation today. Ashley will be joining the University of Wisconsin Stevens Point as an assistant professor this fall
Reposted by Jim Luedtke
npr.org
NPR @npr.org · Jul 24
THANK YOU to our supporters who've stepped up during this critical moment. If you haven't given, here's how you can help:

👉 1. Donate to help keep journalists on the ground: n.pr/458sOhq
👉 2. Share this post to rally friends and family behind this essential service.

Every dollar counts.
"NPR is the one place I can reliably hear from voices across the social, cultural and political landscape — all of the voices that make America what it is." - Patrick B., Cincinnati, OH “Because NPR is nobody’s puppet. NPR provides well-researched, in-depth coverage without bias (no matter what folks say). NPR is the voice of democracy.” -B lone S., Canton, MI “NPR provides an absolutely priceless service that few others do: trustworthy reporting and explainers with no angle other than to keep the public informed.” Ashley S., Victoria, TX “Public, free programming is critically important. It allows everyone, no matter their status in society, the ability to be filled in on politics, listen to great music and have learning accessible.” - Sean H., Melbourne, FL
Reposted by Jim Luedtke
chrischirp.bsky.social
1.5 million Gazans is 75% of the population, half of whom are children.

This is *deliberate* starvation. Just one agency - UNRWA - has stated today it has enough food stockpiled outside the border to feed the population for months.

The Israeli govt must let food and water in & stop the killing.
lewisgoodall.com
“I'm only asking for a piece of bread... that's all," a 17-year-old boy at al-Shifa hospital tells the BBC, as food security body the IPC warns more than 1.5 million Gazans are at risk of severe malnutrition/ starvation.

Nearly 500,000 are considered to be facing “catastrophe.”
Reposted by Jim Luedtke
arxiv-math-oc.bsky.social
Prachi Shah, Santanu S. Dey
Improving Full Strong Branching Decisions by Incorporating Additional Information
https://arxiv.org/abs/2507.09455