Martin Trapp
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trappmartin.bsky.social
Martin Trapp
@trappmartin.bsky.social
Assistant Prof in ML @ KTH 🇸🇪.
Previous: Aalto University 🇫🇮, TU Graz 🇦🇹, originally from 🇩🇪.

Doing: Reliable ML | uncertainty stuff | Bayesian stats | probabilistic circuits

https://trappmartin.github.io/
Reposted by Martin Trapp
I am hiring to my group in @ellisinstitute.fi and @aifunmcr.bsky.social, DL Dec 1

Topics: Multimodal foundation models, out-of-distribution deployable machine learning, collaborative machine learning

kaski-lab.com
Samuel Kaski
kaski-lab.com
November 7, 2025 at 11:06 AM
Reposted by Martin Trapp
@pranav-nlp.bsky.social and I are surveying researchers about naming and name changes in academia (especially computer science).

If your academic name is / has been / might someday be different from other names you've used, please tell us about it here: forms.cloud.microsoft/e/E0XXBmZdEP
November 7, 2025 at 2:57 PM
Reposting this while sitting on a boat in Stockholm… 👀
Newly released Stockholm Declaration recommends the following reforms to publishing:

1. Academia resumes control of publishing

2. Incentive systems to merit quality, not quantity

3. Independent fraud detection and prevention

4. Legislation and policies to protect science quality and integrity
Reformation of science publishing: the Stockholm Declaration | Royal Society Open Science
Science relies on integrity and trustworthiness. But scientists under career pressure are lured to purchase fake publications from ‘paper mills’ that use AI-generated data, text and image fabrication....
royalsocietypublishing.org
November 5, 2025 at 7:18 PM
Reposted by Martin Trapp
The JMLR story and operating model should be widely known in academia as a clear success story for full open access. I have friends in the humanities and pure sciences that have no clue this is even possible
November 5, 2025 at 1:16 AM
Reposted by Martin Trapp
🚀 We are hiring! 🚀

🔍 Join us as a Postdoctoral Researcher (fully-funded) at the Helmholtz Institute for Human-Centered AI in Munich.
November 3, 2025 at 10:24 AM
Reposted by Martin Trapp
Now I'm also looking for a research software engineer to implement a pile of research results to R packages loo, posterior, bayesplot, projpred, priorsense, brms or/and Python packages ArviZ, Bambi and Kulprit. Apply by email with no specific deadline (see contact info at users.aalto.fi/~ave/)
I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/).

Others, please share
I'm looking for a doctoral student with Bayesian background to work on Bayesian workflow and cross-validation (see my publication list users.aalto.fi/~ave/publica... for my recent work) at Aalto University.

Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...
November 3, 2025 at 11:13 AM
Reposted by Martin Trapp
If you're a student in need of a personal website (and if you're doing research, yes, you need a website!), I keep a list of nice examples here, most of which are reusable: www.are.na/maria-antoni...

For example, I just spotted this beautiful website by Catherine Yeh: github.com/catherinesye...
November 3, 2025 at 8:11 PM
Does someone know of good papers discussing the variance (and variance reduction schemes) of randomised trace/diagonal estimation (e.g., Hutchinson)?
October 29, 2025 at 5:52 PM
Reposted by Martin Trapp
I gave a keynote at @nesyconf.org on
"Symbolic Reasoning in the Age of Large Language Models"
Check out the recording if you are curious about neurosymbolic generative AI:
www.youtube.com/watch?v=Otmi...
Guy Van den Broeck - Symbolic Reasoning in the Age of Large Language Models
YouTube video by NeSy conference
www.youtube.com
October 29, 2025 at 4:59 PM
Reposted by Martin Trapp
Very happy and also honoured to serve in a new way, not only thinking of our @ellisinstitute.fi , our very nice collaboration within Nordic AIR, or with Northern UK, but the whole of Europe. @ellis.eu is good for Europe!
"The recent expansion of @ellis.eu with two new institutes in @ellisinsttue.bsky.social and Finland shows that Europe has the vision, resources and drive to achieve the best AI research in the world.” Our director @samikaski.bsky.social joins the ELLIS Board, read more below! 👇
@csaalto.bsky.social
The ELLIS Society welcomes its new Board. As the primary decision-making body, it will play a vital role in shaping the future of ELLIS and advancing #AI and #MachineLearning research across Europe in a time of global change.

Read the full article: ellis.eu/news/ellis-s...
October 28, 2025 at 12:32 PM
Reposted by Martin Trapp
Fisher meets Feynman! 🤝

We use score matching and a trick from quantum field theory to make a product-of-experts family both expressive and efficient for variational inference.

To appear as a spotlight @ NeurIPS 2025.
#NeurIPS2025 (link below)
October 27, 2025 at 12:51 PM
Reposted by Martin Trapp
Or, much more likely, they are role-playing, based on their training data.

www.theguardian.com/technology/2...
AI models may be developing their own ‘survival drive’, researchers say
Like 2001: A Space Odyssey’s HAL 9000, some AIs seem to resist being turned off and will even sabotage shutdown
www.theguardian.com
October 25, 2025 at 5:14 PM
Reposted by Martin Trapp
What if we did a single run and declared victory
October 23, 2025 at 2:28 AM
Reposted by Martin Trapp
What if your CBM actually doesn’t look at attributes when it explains the classification decision? We suggest to use this dataset and method to generate realistic images with unusual attributes to stress-test explainability methods. @jessica-bader.bsky.social is at ICCV to talk to you about it!
1/
SUB: Benchmarking CBM Generalization via Synthetic Attribute Substitutions
@jessica-bader.bsky.social , @lgirrbach.bsky.social , Stephan Alaniz, @zeynepakata.bsky.social
[Paper]: arxiv.org/pdf/2507.23784
[Code]: github.com/ExplainableM...
📍Hall I #2142
🕑Oct 23, Poster Session 5
October 20, 2025 at 2:14 PM
Reposted by Martin Trapp
LUMI AI Factory Hub is #hiring a Coordinator to run operations, coordinate activities, plan events, build community, and connect researchers, industry and students to the @lumi-supercomputer.eu and @csc.fi infrastructure via the Hub at @aalto.fi.
Apply by 19.11.: www.aalto.fi/en/open-posi...
Coordinator – LUMI AI Factory Hub | Aalto University
We’re looking for a Coordinator to help shape and run the Otaniemi AI Factory Hub – a collaborative environment connecting researchers, students, and companies to accelerate breakthroughs in artificial intelligence.
www.aalto.fi
October 20, 2025 at 10:49 AM
Reposted by Martin Trapp
Call for papers: sites.google.com/view/amortiz...

How can we make probabilistic ML fast, generalizable, and ready for the real world? 🤔
Join us for the ELLIS UnConference Workshop on Amortized ProbML on Dec 2 in Copenhagen 🇩🇰 co-located with hashtag#EurIPS
Amortized ProbML 2025 - Call for Papers
Accepted papers will be presented as posters during the workshop poster session on 2nd December, 2025. Please be aware that this is not the same as the ELLIS UnConference poster session.
sites.google.com
October 17, 2025 at 11:22 AM
Reposted by Martin Trapp
The abstract submission deadline for the ELLIS Workshop on Amortized Probabilistic ML has been extended to October 25th!

You still have time to submit a short abstract on your work in: Amortized Inference, Neural processes, Prior-fitted networks, Sequential Decision-Making, and Foundation models.
October 17, 2025 at 11:22 AM
I think OpenReview is really not a good system for peer review. It's mostly better than CMT and clearly better than EasyChair, but it still sucks in so many aspects (overly complex, no reviewer chat, etc).

Not sure if this is a controversial opinion or not... I fear it is not.
October 13, 2025 at 9:13 AM
Whenever I try Le Chat by Mistral, I am surprised how much faster it is than the other system.
October 12, 2025 at 4:33 PM
Reposted by Martin Trapp
The video of Yevgeny Seldin's talk at the Post-Bayes seminar series on "recursive PAC-Bayes" is now online!

youtu.be/We3LZp0EUEM
Yevgeny Seldin (University of Copenhagen) - Recursive PAC Bayes
YouTube video by Post-Bayes seminar
youtu.be
October 8, 2025 at 5:24 AM
Reposted by Martin Trapp
📣 Call for contributions!

The ELLIS UnConference Workshops are looking for work on ProbML, generative models, LLMs for molecules & materials, AI for earth & climate, LLM safety & more.

🗓️ Deadline: Oct 10, 2025
🔗 Details: https://eurips.cc/ellis/

Free entrance with a #EurIPS ticket 🎟️
October 3, 2025 at 7:10 AM
Turns out swimming at night in 11 degrees cold water is fun. 🤩
October 7, 2025 at 7:39 PM
Reposted by Martin Trapp
Job alert!

We are looking for a bioimage analysis to work in an image analysis core facility in beautiful Paris. Can I ask you to share this opportunity with your networks?

See also on the forum:
forum.image.sc/t/research-e...
Research engineer in Bioimage Analysis for the researchers of the inIdEx FORMULA
Hi all We are looking for a bioimage analysis to work in an image analysis core facility in beautiful Paris. Can I ask you to share this opportunity with your networks? The position is in the Instit...
forum.image.sc
October 7, 2025 at 12:39 PM
Very well done podcast on climate change, risks related to it, and what is currently happening (or not happening) to tackle climate change.
Overshoot Episode 1: Uncharted Territory

If the world didn’t win, has it lost?

We meet the underdog diplomats who helped the world set the 1.5°C goal, and the champion sailors who can help us set a course for navigating what comes next

Listen to episode one now: open.spotify.com/episode/1bJl...
PART 1: Uncharted Territory
open.spotify.com
October 6, 2025 at 12:57 PM