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Francis Bach

@bachfrancis.bsky.social
2.4K followers 14 following 17 posts

Researcher in machine learning

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Francis Bach @bachfrancis.bsky.social · 25/09/2026
Overwhelmed by the variance of means of exponentials? This blog post is meant for you. As a bonus, a spectral closed-form formula for (approximate) multinomial logistic regression. francisbach.com/spectral_log...
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Francis Bach @bachfrancis.bsky.social · 20/07/2026
L’Inria et le CNRS toujours au top, cette fois-ci avec nos amis de Grenoble. 170km, 5200m de dénivelé positif pour une Etape du Tour autour de l’Alpe d’Huez. Bravo à Julien Mairal, Olivier Cappé et Julyan Arbel!
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Francis Bach @bachfrancis.bsky.social · 05/03/2026
Looking for alternatives to quadratic functions for closed-form analysis in optimization? This post explores matrix Riccati dynamics and their applications to neural networks. francisbach.com/closed-form-...
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Eugene Berta @eberta.bsky.social · 13/11/2025
Still using temperature scaling? With @dholzmueller.bsky.social, Michael I. Jordan and @bachfrancis.bsky.social we argue that with well designed regularization, more expressive models like matrix scaling can outperform simpler ones across calibration set sizes, data dimensions, and applications.
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Francis Bach @bachfrancis.bsky.social · 27/09/2025
Not all scaling laws are nice power laws. This month’s blog post: Zipf’s law in next-token prediction and why Adam (ok, sign descent) scales better to large vocab sizes than gradient descent: francisbach.com/scaling-laws...
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Francis Bach @bachfrancis.bsky.social · 21/07/2025
Jamais deux sans trois. Le département d’informatique de l’ENS toujours en forme. 131 km, 4500m de dénivelé, cette fois-ci avec du Beaufort aux ravitaillements! Bravo Olivier Cappé! #LEtapeduTour
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Francis Bach @bachfrancis.bsky.social · 18/07/2025
Tired of lengthy computations to derive scaling laws? This post is made for you: discover the sharpness of the z-transform! francisbach.com/z-transform/
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Francis Bach @bachfrancis.bsky.social · 18/07/2025
Tired of lengthy computations to derive scaling laws? This post is made for you: discover the sharpness of the z-transform! francisbach.com/z-transform/
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Francis Bach @bachfrancis.bsky.social · 13/07/2025
What if AI isn’t about building solo geniuses, but designing social systems? Michael Jordan advocates blending ML, economics, and uncertainty management to prioritize social welfare over mere prediction. A must-read rethink. arxiv.org/abs/2507.062...
arxiv.org
A Collectivist, Economic Perspective on AI
Information technology is in the midst of a revolution in which omnipresent data collection and machine learning are impacting the human world as never before. The word "intelligence" is being used as...
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Francis Bach @bachfrancis.bsky.social · 01/07/2025
Big thanks to the COLT 2025 organizers for an awesome event in Lyon! Here are the slides from my keynote this morning in case you’re curious about the references I mentioned: www.di.ens.fr/~fbach/fbach...
di.ens.fr
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Julyan Arbel @julyanarbel.bsky.social · 09/06/2025
Register at PAISS 1-5 Sept 2025 @inria_grenoble with very talented speakers this year 🙂 paiss.inria.fr cc @mvladimirova.bsky.social
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Julien Mairal @jmairal.bsky.social · 05/05/2025
The PAISS summer school is back with an incredible line of speakers (and more to come). Spread the word !
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Académie des sciences @academiesciences.bsky.social · 06/05/2025
Épisode 5 de notre série "Les nouveaux visages de l’Académie des sciences" : La statistique, une science en son temps. Retrouvez la vidéo sur Youtube : www.youtube.com/watch?v=2AhT...
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Lénaïc Chizat @lenaicchizat.bsky.social · 14/04/2025
Announcing : The 2nd International Summer School on Mathematical Aspects of Data Science mathsdata2025.github.io EPFL, Sept 1–5, 2025 Speakers: Bach @bachfrancis.bsky.social Bandeira Mallat Montanari Peyré @gabrielpeyre.bsky.social For PhD students & early-career researchers Apply before May 15!
mathsdata2025.github.io
Mathematical Aspects of Data Science
Graduate Summer School - EPFL - Sept. 1-5, 2025
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Académie des sciences @academiesciences.bsky.social · 01/04/2025
[NOUVELLE SERIE "LES NOUVEAUX VISAGES DE L'ACADEMIE DES SCIENCES] Episode n°1 : Anne Canteaut : une architecte de la cryptographie moderne www.youtube.com/watch?v=xyGC...
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Gabriel Peyré @gabrielpeyre.bsky.social · 28/03/2025
Futur best seller!
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Francis Bach @bachfrancis.bsky.social · 24/03/2025
Characterizing finely the decay of eigenvalues of kernel matrices: many people need it, but explicit references are hard to find. This blog post reviews amazing asymptotic results from Harold Widom (1963!) and proposes new non-asymptotic bounds. francisbach.com/spectrum-ker...
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Francis Bach @bachfrancis.bsky.social · 05/03/2025
The must-read introduction to PAC-Bayes!
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Académie des sciences @academiesciences.bsky.social · 11/02/2025
🔬✨ Journée des Femmes et des filles de science✨🔬 À travers leurs parcours inspirants et leurs engagements, les académiciennes, et toutes les femmes et filles de science façonnent la recherche d’aujourd’hui et de demain. Pour aller plus loin : urls.fr/PK5xg9
urls.fr
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Quentin Berthet @ AISTATS @qberthet.bsky.social · 10/02/2025
Check out our paper, with Lawrence Stewart and @bachfrancis.bsky.social Link: arxiv.org/abs/2502.02996 1/8
arxiv.org
Building Bridges between Regression, Clustering, and Classification
Regression, the task of predicting a continuous scalar target y based on some features x is one of the most fundamental tasks in machine learning and statistics. It has been observed and...
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JP Vert @jpvert.bsky.social · 09/02/2025
If you're curious of what is "behind a term sheet", don't miss this account by the Cathay innovation team who led our recent series A at Bioptimus medium.com/cathay-innov...
medium.com
Behind the Term Sheet: Bioptimus’ $41M Series A
The GPT of Biology Raising the Bar of AI-Driven Scientific Research
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Francis Bach @bachfrancis.bsky.social · 07/02/2025
An inspirational talk by Michael Jordan: a refreshing, deep, and forward-looking vision for AI beyond LLMs. www.youtube.com/live/W0QLq4q...
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Fabian Schaipp @fschaipp.bsky.social · 05/02/2025
Learning rate schedules seem mysterious? Why is the loss going down so fast during cooldown? Turns out that this behaviour can be described with a bound from *convex, nonsmooth* optimization. A short thread on our latest paper 🚞 arxiv.org/abs/2501.18965
arxiv.org
The Surprising Agreement Between Convex Optimization Theory and Learning-Rate Scheduling for Large Model Training
We show that learning-rate schedules for large model training behave surprisingly similar to a performance bound from non-smooth convex optimization theory. We provide a bound for the constant schedul...
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Eugene Berta @eberta.bsky.social · 03/02/2025
Early stopping on validation loss? This leads to suboptimal calibration and refinement errors—but you can do better! With @dholzmueller.bsky.social, Michael I. Jordan, and @bachfrancis.bsky.social, we propose a method that integrates with any model and boosts classification performance across tasks.
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JP Vert @jpvert.bsky.social · 05/01/2025
I've been eagerly awaiting this book for years! At last, a standalone and meticulous exposition of the current mathematical principles of machine learning, adorned with beautiful proofs. Well done and thank you, @bachfrancis.bsky.social . Discover more here: francisbach.com/my-book-is-o...
francisbach.com
My book is (at last) out! – Machine Learning Research Blog
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Francis Bach @bachfrancis.bsky.social · 21/12/2024
A happy author discovering the first hard copies
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Francis Bach @bachfrancis.bsky.social · 21/12/2024
My book is (at last) out, just in time for Christmas! A blog post to celebrate and present it: francisbach.com/my-book-is-o...
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Francis Bach @bachfrancis.bsky.social · 21/12/2024
My book is (at last) out, just in time for Christmas! A blog post to celebrate and present it: francisbach.com/my-book-is-o...
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Académie des sciences @academiesciences.bsky.social · 17/12/2024
Breaking news : L'Académie des sciences accueille 18 nouveaux membres dès 2025, avec une majorité féminine pour la 1ère fois depuis 1666 👩‍🔬 : un symbole fort pour la parité en science ! 💥 🔗 En savoir plus sur les nouveaux membres : urlr.me/mntDHX
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Francis Bach @bachfrancis.bsky.social · 27/11/2024
New opening! Post-doctoral position on relaxation methods for large-scale optimization and the management of electrical systems, in collaboration between EDF and Inria Saclay and Paris. See more details here: laurentpfeiffer.github.io/postdoc/
laurentpfeiffer.github.io
| Laurent Pfeiffer
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