Bastien Perroy @bastienperroy
researching passenger cognition in metro systems bastienperroy.com Paris, France Joined June 2010-
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A product that (almost) everyone uses from mid-sized tech companies and up but I rarely hear talked about: Grafana In The Pragmatic Engineer 2025 survey, it had more mentions than Cursor, and dominates as the answer to "how do you turn information into graphs" This is Grafana:
I’m thrilled to share that the Second Edition of The Book of Why will be released at the end of this year. It will include brief discussions of recent breakthroughs in causal inference, as well as some aspects of LLMs. Join me on this next journey into the land of causality —…
The final version of this paper has now been published in open access in the Journal of Memory and Language (link below). This was a long-running but very rewarding project. Here are a few thoughts on our methodology and main findings. 1/9
The final version of this paper has now been published in open access in the Journal of Memory and Language (link below). This was a long-running but very rewarding project. Here are a few thoughts on our methodology and main findings. 1/9 https://t.co/RFLIkdXkBO
The way forward 👏
For my classification tutorial, I labeled 20,000 complex STEM scientific article titles and abstracts according to an elaborate proprietary taxonomy of about 1200 classes. To do that, I called 5 top non-reasoning LLMs for each document via @OpenRouterAI and took the majority…
If your input text is smaller than 512 tokens and you need a fast text classifier, fine-tuning a RoBERTa model (an encoder) generally gives a better classification result compared to a decoder LM of a larger size. There’s currently a newer reincarnation of BERT, called…
That's actually a crucial philosophical question there. Do embeddings contain representations? Meaning accuracy conditions against which they can be evaluated. Looks like the compositional logic happens one step above. Like network activations vs. "mental states" in the brain.
That's actually a crucial philosophical question there. Do embeddings contain representations? Meaning accuracy conditions against which they can be evaluated. Looks like the compositional logic happens one step above. Like network activations vs. "mental states" in the brain.
It goes like that if you want to rethink AI. First, language is a wonderful modality. It can be the signal, the description of the processing, the comments about the description, etc. So language it will be. 1/7
i don't trust anyone who doesn't severely underestimate how much work their tasks are. because if they don't, they never try
Yeah that’s the correct move. Standard good eval should be like 20-50 entries, manually curated if not crafted, singling out painful edge cases.
Yeah that’s the correct move. Standard good eval should be like 20-50 entries, manually curated if not crafted, singling out painful edge cases.
So I mean, of course it comes down to “know thyself”. But in general it seems clear ppl should satisfice for cash, optimize for learning/growth, and ignore everything else. If you love knife fight competition, get a tracked job.
From mistrusting AI on principle to trusting it on that same very principle.
From mistrusting AI on principle to trusting it on that same very principle.
IMO, if GPT 4.5 was released as an open-source base model (that everyone can distill), it would be the most impactful release of the year. As an API, it's meh...
fiancé has been sick in bed all day and just miraculously emerged because he “needs to try Claude 3.7 Sonnet”
Agency > Intelligence I had this intuitively wrong for decades, I think due to a pervasive cultural veneration of intelligence, various entertainment/media, obsession with IQ etc. Agency is significantly more powerful and significantly more scarce. Are you hiring for agency? Are…
Agency > Intelligence I had this intuitively wrong for decades, I think due to a pervasive cultural veneration of intelligence, various entertainment/media, obsession with IQ etc. Agency is significantly more powerful and significantly more scarce. Are you hiring for agency? Are…
So freaking cool.
Couldn't agree more ;-)
Paninom Mathieu @PaninomM
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France @Trowbridge93479
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Camillo @brazilianjanus
854 Followers 2K Following Since I started studying Philosophy of Memory, I lost my ability to remember. Sorry ▪︎PhD Candidate at UFG 🇧🇷
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Paul @Sesme212079
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Tanay Katiyar @adigitaltanay
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3K Followers 2K Following Lecturer in Cognitive Psychology @KeelePsychology Environmental Temporal Cognition Lab Director 🧠 🕰️🧊🌵 and somehow SFHEA.
ejammes @ejammes
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Karl Lashley @KarlLashleyENS
0 Followers 7 Following Mon rêve et travail : une science des transports en commun suivie d'effets pour améliorer l'expérience des voyageurs. :-) Travaille pour @ratpgroup
Institut Carnot Cogni... @inst_cognition
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John Sutton @SuttonProfessor
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1 Followers 6 Following Je recherche les perturbations des transports en commun pour @InstitutNicod, dans l'objectif d'améliorer la qualité de service en IDF ! :-)
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1 Followers 9 Following Recherche sur les perturbations du trafic métro / RER en Île de France pour @InstitutNicod (ENS Ulm, EHESS, CNRS), pour améliorer la qualité de service. :-)
Objectif France Bouch... @ObjFrance13
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Pierre Jacquel @pierre_jacquel2
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Thomas Mangin @thms-m... @Thomas_Mangin_
310 Followers 455 Following PhD, post-doc in Montréal at Montréal University; Effort, Boredom, Self-control, cognitive fatigue, ego-depletion https://t.co/jZ6jMtomy5
Vanda Černohorská @VandaCernohor
991 Followers 1K Following sociologist • féministe • researcher @eu_timed @FLU_AV_CR & @NKC_CZ @Sociologicky @CzechAcademy | @FulbrightPrgrm @CCSYale alumna
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59K Followers 2K Following Wagmi. 2025. As featured in Bloomberg. As quoted by Nobel Prize winner Demis Hassabis. As mentioned on the Lex Fridman Podcast💺
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347 Followers 174 Following Professor @EcoleDesPonts IP Paris | AI for math | Control and stabilisation of PDEs | Member @ CIRCLES consortium
CFPSAA @cfpsaa
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Emmett Shear @eshear
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Guillaume @guillaume_acc
2K Followers 607 Following Advocate for a federal Europe 🇪🇺 | Pro-science & innovation 🔬 | Supporting nuclear energy ⚛️ | Accelerating for our Europe 🚀
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kache @yacineMTB
196K Followers 6K Following SPONSORED BY FORMLABS - https://t.co/90QFod1lcD - get your 3d printer TODAY prev eng @ x, stripe. yacine_kv on insta I write a subscriber only blog. Subscribe!
clem 🤗 @ClementDelangue
156K Followers 5K Following Co-founder & CEO @HuggingFace 🤗, the open and collaborative platform for AI builders
Sophia Yang, Ph.D. @sophiamyang
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Designed by GG @DesignedbyGG
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98K Followers 643 Following Claude Relations @AnthropicAI. Opinions are my own!
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23K Followers 494 Following Head of Post-Training @LiquidAI_ 💻 GitHub: https://t.co/ElXDsjz8YP 🤗 HF: https://t.co/2ECS7GiJGD 📝 Blog: https://t.co/Gz5bhbXWT0
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Katja Grace 🔍 @KatjaGrace
10K Followers 798 Following Thinking about whether AI will destroy the world at https://t.co/pMilDvd4ya. DM or email for media requests. Feedback: https://t.co/zGAm1i7SKH
Iason Gabriel @IasonGabriel
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Metro Los Angeles @metrolosangeles
149K Followers 816 Following 🌴🚌💨 Your go-to for getting around Los Angeles 🕦 Account monitored M-F 7 AM-6 PM ☎️ 888.950.7233 for security issues ⚠️ @MetroLAalerts for service alerts
Artificial Analysis @ArtificialAnlys
60K Followers 563 Following Independent analysis of AI models and hosting providers - choose the best model and API provider for your use-case
Sarah Robins @SarahKRobins
1K Followers 462 Following Philosopher of Memory, Psychology, Neuroscience. Engram enthusiast/skeptic. Gardener, knitter, swimmer. Mild addiction to mystery novels. She/her.
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22K Followers 3K Following Placeholder for the scientist and author. Mostly on Substack not Twitter. https://t.co/CKyLzw5bHK
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lmarena.ai @lmarena_ai
94K Followers 207 Following LMArena: Open Platform for Community-driven AI Benchmarking. Graduated from UC Berkeley / @lmsysorg. We’re hiring: https://t.co/1OkfLq2n0I
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