Sign in

Arinbjörn

@arinbjorn.is
1.7K followers 665 following 288 posts

Visiting Postdoc Scholar @UVA Previously: PhD Imperial, Evidation Health, Samsung AI Researching core ML methods as well as computational/statistical methods in biomedicine, health and law arinbjorn.is 📍Switzerland

PostsRepliesMedia
Arinbjörn @arinbjorn.is · 07/08/2026
I thought companies only disclosed cybersecurity incidents these days if they are the actor, not the victim
000
Arinbjörn @arinbjorn.is · 03/05/2026
It's always a "back to normal" check when you have to remove the conference marker from your handle
120
Arinbjörn @arinbjorn.is · 29/04/2026
yes, but
000
Arinbjörn @arinbjorn.is · 26/04/2026
Today at ICLR 2026: where does differential privacy actually start working on small tabular data? We mapped the boundary across six datasets. Sharp transition at N/d ≈ 50–300. DATA-FM Workshop, Rio. Come find me. #ICLR2026
010
Arinbjörn @arinbjorn.is · 23/04/2026
First day of @iclr-conf.bsky.social coming to an end Great conversations, presentations and events A real highlight is the setting, it’s a beautiful venue #ICLR2026
Riocentro conference centre, mixing indoor and outdoor spaces with water features. Riocentro conference centre, mixing indoor and outdoor spaces with water features. 
Riocentro conference centre, mixing indoor and outdoor spaces with green spaces.
150
Arinbjörn @arinbjorn.is · 21/04/2026
The Amsterdam to Rio flight should just be called the ICLR express, almost more posters than seats
020
Arinbjörn @arinbjorn.is · 21/04/2026
Heading to Rio 🇧🇷 for #ICLR 2026 with four papers: 📍 Terminal-Bench, main track (led by Mike & Alex) 📍 DP Viability Boundary (DATA-FM) 📍 Tensorised Multi-Omics Generation (Gen²) 📍 Stability-Aware Prompt Optimization (Trustworthy AI) See you there! #ICLR2026
030
Arinbjörn @arinbjorn.is · 23/03/2026
Cool to see that EurIPS is now official as “NeurIPS Europe” but EurIPS is such a cool name
070
Arinbjörn @arinbjorn.is · 06/03/2026
Reminds me of the YOLOv3 paper, which cites itself (not that it matters much, since it now has almost 40k external citations)
010
Arinbjörn @arinbjorn.is · 06/03/2026
3/3 papers accepted to #ICLR workshops and 1/1 to the conference track. See you in Rio!
000
Arinbjörn @arinbjorn.is · 31/12/2025
Annual tradition: my personal site runs virtual fireworks on Dec 31 / Jan arinbjorn.is
arinbjorn.is
Arinbjörn Kolbeinsson
Machine learning scientist at UVA and Imperial College London. Research in healthcare AI, foundation models and legal technology.
000
Arinbjörn @arinbjorn.is · 12/12/2025
Glad you like it!
010
Arinbjörn @arinbjorn.is · 12/12/2025
Routing data from signal.eu.org, station data and basemaps from @openstreetmap.bsky.social
000
Arinbjörn @arinbjorn.is · 12/12/2025
Made a thing: an interactive train route mapper for Europe 🚃 Pick your stations, see the actual railway paths, share your routes. No signup, no accounts, no friction. trainmap.app
trainmap.app
Trainmap | Track Your Train Journeys
Create beautiful maps of your train journeys across Europe. Track, visualise, and share your rail adventures.
240
Arinbjörn @arinbjorn.is · 08/12/2025
Cool! EurIPS was just a few months too early for those of us based in Switzerland to use the new direct night train to Copenhagen (starts April 15): www.sbb.ch/en/leisure-h...
sbb.ch
By train to Copenhagen | SBB
Take a city break and travel by train to Copenhagen. Buy train tickets online.
110
Arinbjörn @arinbjorn.is · 08/12/2025
Back from #EurIPS Copenhagen. The European AI "style" came up a lot, which is less about where research happens, more about how: rigour, efficiency, interpretability over pure scale. Hope it returns in 2026 (offset by a week so we can do NeurIPS Sydney too). Phrase of the conference: Pareto-front
040
Reposted by Arinbjörn
Gaël Varoquaux @gaelvaroquaux.bsky.social · 05/12/2025
Uncertainty in the LLM era - Science, more than scale speakerdeck.com/gaelvaroquau... My #EurIPS keynote, on scale, uncertainty, and narratives in AI
speakerdeck.com
Uncertainty in the LLM era - Science, more than scale
Today's AI narrative is anchored in scale, and models are far from textbook statistical modeling. And yet, the plague that are hallucination shows us th…
0255
Arinbjörn @arinbjorn.is · 04/12/2025
Great to see the lossless version! Although I really like the uniqueness of the physical one
010
Arinbjörn @arinbjorn.is · 03/12/2025
It’s starting to feel a lot like (N)EurIPS
030
Arinbjörn @arinbjorn.is · 03/12/2025
@maksym-andr.bsky.social
020
Arinbjörn @arinbjorn.is · 02/12/2025
Looking forward to an exciting week at the inaugural @euripsconf.bsky.social in Copenhagen
010
Reposted by Arinbjörn
Epoch AI @epochai.bsky.social · 26/11/2025
Within two years, the largest data centers may use more power than major cities. We think Microsoft's Fairwater Wisconsin campus will have a peak electrical load of 3.3 GW when its fourth building comes online in late 2027. (Los Angeles used 2.4 GW on average in 2023)
1131
Arinbjörn @arinbjorn.is · 13/11/2025
Contributing to the #aurora posts from Reykjavík
1322
Arinbjörn @arinbjorn.is · 10/11/2025
E.g. Case where it helps A) My parents, Ayn Rand and God (Ambiguous) B) My parents, Ayn Rand, and God Case where it hurts A) The leader, JFK and Stalin (Not ambiguous) B) The leader, JFK, and Stalin (Ambiguous – is the leader and JFK the same person or separate?) The show example is a mix of both.
000
Arinbjörn @arinbjorn.is · 10/11/2025
I'm not sure that's what happening here. The Oxford comma clarifies whether the final two items are separate entries or appositives of the third-to-last item. However, it cannot disambiguate when the second-to-last can be an appositive of the third-to-last item.
100
Arinbjörn @arinbjorn.is · 08/11/2025
I am still not seeing how people think adding a comma will reduce ambiguity here
100
Arinbjörn @arinbjorn.is · 08/11/2025
That would make the sentence more ambiguous
020
Arinbjörn @arinbjorn.is · 31/10/2025
It’s always a nice morning when you wake up to a paper acceptance notification
010
Arinbjörn @arinbjorn.is · 20/10/2025
Iceland's status as utopia has come to an end. No more mosquito-free haven. www.ruv.is/english/2025...
ruv.is
Mosquitoes arrive in Iceland - RÚV.is
Three mosquitoes were found in Kjós in recent days. This has been confirmed by the Icelandic Institute of Natural History. It is the first time that mosquitoes have been discovered on Icelandic soil.
000
Arinbjörn @arinbjorn.is · 17/10/2025
Great conversations at Launch @ethz.ch today on what it takes to scale infrastructure plays in Europe. The speakers highlighted critical new challenges that startups face, especially around timing, market entry and what differentiates category-defining companies from point solutions.
000
Reposted by Arinbjörn
Epoch AI @epochai.bsky.social · 03/10/2025
Sora 2 can solve questions from LLM benchmarks, despite being a video model. We tested Sora 2 on a small subset of GPQA questions, and it scored 55%, compared to GPT-5’s score of 72%.
1225
Arinbjörn @arinbjorn.is · 04/10/2025
Very interesting work. I wonder if it could be a video-language fusion model, partly trained on high quality text
000
Arinbjörn @arinbjorn.is · 04/10/2025
I’ve already used all of mine unfortunately, will let you know if they refill!
000
Arinbjörn @arinbjorn.is · 03/10/2025
I was at a dinner party last month where this topic came up. Would recommend.
010
Reposted by Arinbjörn
Alexios Mantzarlis @mantzarlis.com · 02/10/2025
Good stuff from @alexmahadevan.com
poynter.org
My journey into the artificial world of Sora 2 - Poynter
OpenAI’s new social media platform is filled with AI slop and people scamming for likes
052
Arinbjörn @arinbjorn.is · 01/10/2025
Thank you!
110
Arinbjörn @arinbjorn.is · 01/10/2025
Did you get any additional ones? I’m also hoping to find one
100
Reposted by Arinbjörn
Jan Rosenow @janrosenow.bsky.social · 26/09/2025
Those claiming there’s no energy transition only an “energy addition,” are wrong. I told FT: Yes, it’s correct that we are not on track globally to reduce emissions fast enough. But if you look at what’s happening across sectors, technologies, and geographies, you see real transitions underway.
30556104
Arinbjörn @arinbjorn.is · 27/09/2025
My TV has a bug, either the video plays normally or the video progress bar shows, but never both simultaneously. I think it was designed by Heisenberg. I can observe either the plot or the position in the movie, but I can’t know both at once.
020
Arinbjörn @arinbjorn.is · 15/09/2025
Definitely no greenwashing here of Mount Doom’s geothermal and I guess they’re not fully consolidated accounts since Saruman’s Isengard dam doesn’t boost renewables either
000
Arinbjörn @arinbjorn.is · 09/09/2025
Norway is a strong outlier and really bucks the trend
000
Arinbjörn @arinbjorn.is · 30/08/2025
Would be useful here if Bluesky had spoiler mode like Threads
010
Arinbjörn @arinbjorn.is · 30/08/2025
Coffee beans? I had to think
110
Arinbjörn @arinbjorn.is · 28/08/2025
Perhaps this is the next test after the Turing test. A machine that can prove to us how it works, when we can't do it ourselves.
020
Arinbjörn @arinbjorn.is · 23/08/2025
I like that this story is front-loaded
000
Reposted by Arinbjörn
Cas (Stephen Casper) @scasper.bsky.social · 12/08/2025
🧵 New paper from UK AISI x @eleutherai.bsky.social rai.bsky.social‬ that I led with @kyletokens.bsky.social y.social���: Open-weight LLM safety is both important & neglected. But filtering dual-use knowledge from pre-training data improves tamper resistance *>10x* over post-training baselines.
2124
Arinbjörn @arinbjorn.is · 08/08/2025
It is a bit confusing – feels like having a stochastic+opaque model selector
050
Arinbjörn @arinbjorn.is · 08/08/2025
This can be confusing
120
Arinbjörn @arinbjorn.is · 28/07/2025
Temu is the Temu of online marketplaces?
010