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.

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...

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

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/

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/

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...

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...

Register at PAISS 1-5 Sept 2025 @inria_grenoble with very talented speakers this year 🙂 paiss.inria.fr cc @mvladimirova.bsky.social

The PAISS summer school is back with an incredible line of speakers (and more to come). Spread the word !

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...

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!

[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...

Futur best seller!

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...

The must-read introduction to PAC-Bayes!

🔬✨ 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

Check out our paper, with Lawrence Stewart and @bachfrancis.bsky.social Link: arxiv.org/abs/2502.02996 1/8

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...

An inspirational talk by Michael Jordan: a refreshing, deep, and forward-looking vision for AI beyond LLMs. www.youtube.com/live/W0QLq4q...

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

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.

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...

A happy author discovering the first hard copies

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...

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...

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

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/