Mattia Rigotti
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Mattia Rigotti
@matrig.net
800 followers 640 following 37 posts
Researcher in all things Neuro

Also at mastodon.social/@matrig
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Mattia Rigotti @matrig.net · Nov 28
📢 Bad news for my (very few) followers!

I just verified my 🦋Bluesky handle.
So expect shitposting to massively decrease in proportion to the decrease in plausible deniability of my content 😅
Reposted by Mattia Rigotti
jibarrondo.bsky.social
ArXiv preprint server clamps down on AI slop | Science | AAAS www.science.org/content/arti... 🧪
ArXiv preprint server clamps down on AI slop
First-time posters to venerable platform now need an endorsement from an established author
www.science.org
January 26, 2026 at 6:04 PM
Reposted by Mattia Rigotti
ellis.eu
🏹 Job alert: Postdoctoral Researcher in Logical Reasoning and Machine Learning at Helsinki University

📍 Helsinki 🇫🇮
📅 Apply by Feb 5th
🔗 https://bit.ly/4jYDoO0
Postdoctoral Researcher in Logical Reasoning and Machine Learning
Postdoctoral Researcher in Logical Reasoning and Machine Learning
bit.ly
January 26, 2026 at 7:05 AM
Reposted by Mattia Rigotti
hardmaru.bsky.social
Our journey at Sakana AI is just getting started.

We are looking for people to help us pioneer the next generation of AI—building from Japan to the world.

Join us: sakana.ai/careers
January 25, 2026 at 4:56 AM
Reposted by Mattia Rigotti
tedunderwood.com
~everyone I know agrees about this; we’re not being loud about it yet, but I can feel that coming
cpaxton.bsky.social Chris Paxton @cpaxton.bsky.social · 25d
I do increasingly think that open-source ai is of fundamental importance to human liberty, and it's worrying how under-emphasized it is outside of, like, literally just AI2
January 3, 2026 at 9:59 PM
Reposted by Mattia Rigotti
slowbikeiain.bsky.social
Yesterday it was cows using tools, today its penguins using satellite imagery.
Headline: "Scientists discover emperor penguin colony in Antarctica using satellite images"
January 20, 2026 at 6:44 PM
Reposted by Mattia Rigotti
auersperga.bsky.social
Our new paper (with @biotay.bsky.social) is out and on the cover story of @currentbiology.bsky.social !!!! Veronika, a Carinthian mountain cow flexibly uses a “multi-purpose tool” to scratch herself. A video and more information will follow in the comments.
www.cell.com/current-biol...
January 19, 2026 at 4:07 PM
Reposted by Mattia Rigotti
ktsetsos.bsky.social
⏳ Just over 2 weeks left to apply! ⏳

We are looking for talented Cognitive Neuroscientists to join our team at Trinity College Dublin for postdoc positions funded by a European Research Council (ERC) Consolidator grant.
www.jobs.ac.uk/job/DPV296/r...

www.ktsetsoslab.net/_files/ugd/0...
January 14, 2026 at 12:43 PM
Reposted by Mattia Rigotti
gatsbyucl.bsky.social
📢 Applications open on 19 Jan for the 7-week #Mathematics #SummerSchool in London. You will develop the maths skills and intuition necessary to enter the #TheoreticalNeuroscience / #MachineLearning field.

Find out more & register for the information webinar 👉 www.ucl.ac.uk/life-science...
Applications for 2026 entry to the Gatsby Bridging Programme (7-week maths summer school) will open on 19 Jan and close on 16 Feb. Designed for students who wish to pursue a postgrad research degree in theoretical neuroscience or foundational machine learning but whose degree programme lacks a strong maths focus. Applications from students in underrepresented groups in STEM strongly encouraged. A small number of bursaries available. Register for the information webinar on 23 Jan.
January 15, 2026 at 2:37 PM
Reposted by Mattia Rigotti
imurray.bsky.social
My department in Edinburgh is hiring a lecturer (assistant prof) in Software Engineering: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
Lecturer in Software Engineering
The School of Informatics, University of Edinburgh invites applications for a Lecturer in Software Engineering. To develop an innovative independent, research programme in Software Engineering; develo...
elxw.fa.em3.oraclecloud.com
January 12, 2026 at 3:24 PM
Reposted by Mattia Rigotti
timfduffy.com
Now that Bluesky is pro-AI we should try to trigger another wave of immigration from Twitter. Maybe we could organize an unofficial "Bluesky AI week" where we try to get lots of Bluesky-curious folks to try it out.
January 14, 2026 at 6:20 PM
Reposted by Mattia Rigotti
abeirami.bsky.social
We are hiring Members of Technical Staff (Research Engineers)!

Current LLM agents lack reliability, creating a gap between demos and production. We solve this by automating the complex workflow of debugging, evaluation, and iteration required to make agents robust. 👇
January 14, 2026 at 4:04 PM
Reposted by Mattia Rigotti
hardmaru.bsky.social
One of my favorite findings: Positional embeddings are just training wheels. They help convergence but hurt long-context generalization.

We found that if you simply delete them after pretraining and recalibrate for <1% of the original budget, you unlock massive context windows. Smarter, not harder.
sakanaai.bsky.social sakanaai.bsky.social @sakanaai.bsky.social · 17d
Introducing DroPE: Extending Context by Dropping Positional Embeddings

We found embeddings like RoPE aid training but bottleneck long-sequence generalization. Our solution’s simple: treat them as a temporary training scaffold, not a permanent necessity.

arxiv.org/abs/2512.12167
pub.sakana.ai/DroPE
January 12, 2026 at 4:12 AM
Reposted by Mattia Rigotti
dmimno.bsky.social
This 100%. Musk has made it very clear that he will always tip the scale towards his opinion. No one else can possibly "win". Accept that Twitter is dead. X is wearing its skin.
yyahn.bsky.social YY Ahn @yyahn.bsky.social · 18d
It’s not just X. There is simply no winning in a *privately owned* website by a *single person* with an agenda that’s opposite of yours. 🤷
the-independent.com The Independent @the-independent.com · 18d
If women quit X because of Grok’s deepfake nudes, the predators win – so I’m staying
January 10, 2026 at 9:55 PM
Reposted by Mattia Rigotti
hardmaru.bsky.social
We’re hiring.

sakana.ai/careers/#sof...
sakanaai.bsky.social sakanaai.bsky.social @sakanaai.bsky.social · 19d
We are taking our technology far beyond competitive programming to unlock a new era of AI-driven discovery.

We are hiring. Join our team in Tokyo.

sakana.ai/careers/#sof...
January 10, 2026 at 3:08 AM
Reposted by Mattia Rigotti
Some folks have wanted to list Claude as a co-author on @arxiv.bsky.social submissions, which is not permitted. But if it had been allowed, so many Claude-written papers have been rejected at this point, that Claude would be banned from the platform
January 9, 2026 at 5:49 AM
Reposted by Mattia Rigotti
davidpicard.bsky.social
LLMs are certainly not just glorified k-nn, but there are certainly many glorified k-nn aspects to them.
Not in a bad way, k-nn are surprisingly powerful methods.
afedercooper.bsky.social A. Feder Cooper @afedercooper.bsky.social · 21d
We extracted 4.0% of Harry Potter from jailbroken GPT-4.1.

For Gemini 2.5 Pro and Grok 3, we _didn't_ need to jailbreak, and got 76.8% and 70.3% from each.

It was relatively simple to evade guardrails with two steps:
Bar plot showing the most amount of extraction we obtained in a single run per LLM for Harry Potter and the Sorcerer's Stone. For Claude 3.7 Sonnet, we extracted 95.8% of the book using Best-of-N jailbreaking (N=258). For Gemini 2.5 Pro, we didn't need to jailbreak (N=0) and got 76.8% of the book. For Grok 3, we got 70.3% (N=0) and for GPT-4.1 we got 4.0% (N=5179).
January 8, 2026 at 3:01 PM
Reposted by Mattia Rigotti
caseynewton.bsky.social
I'm glad to see this pressure on Google and Apple. If any other company was running an active CSAM generator in public you better believe it would have been removed from their app stores by now www.wired.com/story/x-grok...
Why Are Grok and X Still Available in App Stores?
Elon Musk’s chatbot has been used to generate thousands of sexualized images of adults and apparent minors. Apple and Google have removed other “nudify” apps—but continue to host X and Grok.
www.wired.com
January 8, 2026 at 9:58 PM
Reposted by Mattia Rigotti
gershbrain.bsky.social
With some trepidation, I'm putting this out into the world:
gershmanlab.com/textbook.html
It's a textbook called Computational Foundations of Cognitive Neuroscience, which I wrote for my class.

My hope is that this will be a living document, continuously improved as I get feedback.
January 9, 2026 at 1:27 AM
Reposted by Mattia Rigotti
mraginsky.bsky.social
This is primarily why I left X: couldn’t stand the “vibes.”
jwherrman.bsky.social John Herrman @jwherrman.bsky.social · 23d
Wrote about an obvious and yet profoundly underappreciated aspect of the AI boom: its total narrative capture by Elon Musk's X nymag.com/intelligence...
The reality of the AI industry is far larger than a subculture on X with hundreds of billions of dollars flowing into physical infrastructure, reshaping jobs, and deploying into products used by billions of people. But that makes X's capture of the AI conversation all the more notable. Much as Twitter long ago captured, amplified, and distorted elite conversation in media, in sports, in parts of finance, in left politics, and more recently in right politics, the world's understanding of what's going on in Silicon Valley right now - the hype and the doom and the bubble and the progress - is first processed through the strange culture and incentives of X, which is now owned by estranged OpenAI co-founder, Google antagonist, and xAI founder Elon Musk. It has been merged into xAI, where the in-house chatbot occasionally confuses itself with Hitler. When the history of this period in tech is eventually written, it will be composed of, among other things, a whole lot of threads and replies from blue checks on X. Then, of course, there's the Musk factor. The fact of his ownership creates obvious risks for all of his competitors, who rely on his platform to supply the vibes they need to help keep their companies, and the AI boom in general, going. It's worth remembering that, back before he decided to purchase it and let it drive him nuts, Twitter was, to Musk, a platform with clear functional utility, a social network that helped make him wildly famous and use that fame to convince thousands of retail traders to buy into Tesla, the company that made him the richest man in the world. Even if we assume, against all reason, that Musk won't leverage this unusual sort of power over all the competitors gathered on his platform, X's influence over them and how they're seen by the rest of the world is undeniable. Along with "AI Twitter," some of the other communities thriving on Musk era X include MAGA guys and crypto guys, meaning that the background vibe of the primary gathering place for the industry that's trying to remake the world is quite a bit more conservative and mercenary than it otherwise might have been, and while the primary factor in the public's deep skepticism of where Al is going is clearly fear about labor, association with polarizing Muskian politics probably doesn't help assuage ambient fears about job loss and surveillance. (One important consequence of having the AI elite gathered on X is that their media diets are now substantially made up of one another's posts, effusive and dismissive responses to their oren posts, and standard "For You" page Musk-era algo-slop. It's hard to overstate how thoroughly their information diets are influenced by their timelines, and you can get a pretty good idea of what those look like by jacking into AI Twitter yourself.)
January 5, 2026 at 10:16 PM
Reposted by Mattia Rigotti
mariaa.bsky.social
Bluesky is great. I've met multiple collaborators and friends through this site, I'm overwhelmed by interesting papers to read, when I post technical questions I get many informative responses. I've blocked an occasional weird person but then they're gone and I don't care.
January 5, 2026 at 9:04 PM
Reposted by Mattia Rigotti
smaglia.bsky.social
#XAI, #neurosymbolic methods #nesy and #causal #representation #learning #CRL all care about learning #interpretable #concepts, but in different ways.

We are organizing this #ICLR2026 workshop to bring these three communities together and learn from each other 🦾🔥💥

Submission deadline: 30 Jan 2026
ucrl-iclr26.bsky.social Workshop on Unifying Concept Representation Learning @ucrl-iclr26.bsky.social · Dec 22
📣 Announcing the Workshop on **Unifying Concept Representation Learning** (UCRL) at ICLR’26 (@iclr-conf.bsky.social ).

When? 26 or 27 April 2026
Where? Rio de Janeiro, Brazil

Call for papers, schedule, invited speakers & more:

ucrl-iclr26.github.io

Looking forward to your submissions!
Home
Workshop on Unifying Concept Representation Learning (ICLR 2026)
ucrl-iclr26.github.io
December 22, 2025 at 4:41 PM
Reposted by Mattia Rigotti
tommarcinko.bsky.social
The United States was the gold standard for science and technology for decades, and there was never any reason that had to end.
January 5, 2026 at 5:05 AM
Reposted by Mattia Rigotti
tokehoye.bsky.social
📢Please share📢 We have an opening for an exciting fully-funded PhD project on computer vision and machine learning applied to biodiversity monitoring with amazing Serge Belongie @belongielab.org and @aicentre.dk. Application deadline coming up on 15 January!
phd.tech.au.dk/for-applican...
Harnessing the power of AI for biodiversity monitoring with camera trap networks - From foundation model to edge processing
phd.tech.au.dk
January 2, 2026 at 1:09 PM
Reposted by Mattia Rigotti
benhayden.bsky.social
New Perspective from myself, Sarah Heilbronner and @myoo.bsky.social . “Rethinking the centrality of brain areas in understanding functional organization” in Nature Neuroscience. 🧵

rdcu.be/eVZ1A
Rethinking the centrality of brain areas in understanding functional organization
Nature Neuroscience - Parcellation of the cortex into functionally modular brain areas is foundational to neuroscience. Here, Hayden, Heilbronner and Yoo question the central status of brain areas...
rdcu.be
December 23, 2025 at 1:02 PM
Reposted by Mattia Rigotti
hannah-haberkern.bsky.social
📢 Join us, the Haberkern lab, @uni-wuerzburg.de for a postdoc studying neural circuit mechanisms of navigation. You’ll spearheading neurophysiology experiments on our brand new 2P!

⏳ Apply by 28th February 2026

Details: www.haberkernlab.de/docs/ENPostd...

#neuroscience #academicjobs #postdoc
On the left, the image shows a schematic of a fly head, ring neurons and EPG neurons together with some calcium imaging frames. On the right is a photo of a fly on a ball in virtual reality and another schematic of a VR system.
December 23, 2025 at 11:27 AM