Gaël Varoquaux
@gaelvaroquaux.bsky.social
Research & code: Research director @inria
►Data, Health, & Computer science
►Python coder, (co)founder of scikit-learn, joblib, & @probabl.bsky.social
►Sometimes does art photography
►Physics PhD
►Data, Health, & Computer science
►Python coder, (co)founder of scikit-learn, joblib, & @probabl.bsky.social
►Sometimes does art photography
►Physics PhD
🎉 Announcing TabICLv2: State-of-the art Table Foundation Model, fast and open source
A breakthrough for tabular ML: better prediction and faster runtime than alternatives, work by Jingang Qu, David Holzmüller @dholzmueller.bsky.social , Marine Le Morvan, and myself 👇
A breakthrough for tabular ML: better prediction and faster runtime than alternatives, work by Jingang Qu, David Holzmüller @dholzmueller.bsky.social , Marine Le Morvan, and myself 👇
February 12, 2026 at 1:26 PM
🎉 Announcing TabICLv2: State-of-the art Table Foundation Model, fast and open source
A breakthrough for tabular ML: better prediction and faster runtime than alternatives, work by Jingang Qu, David Holzmüller @dholzmueller.bsky.social , Marine Le Morvan, and myself 👇
A breakthrough for tabular ML: better prediction and faster runtime than alternatives, work by Jingang Qu, David Holzmüller @dholzmueller.bsky.social , Marine Le Morvan, and myself 👇
Reposted by Gaël Varoquaux
- A new example has been added to show how skrub Data Ops can be used with pytorch and skorch to solve an image classification task.
skrub-data.org/stable/auto_...
skrub-data.org/stable/auto_...
Using PyTorch (via skorch) in DataOps
This example shows how to wrap a PyTorch model with skorch and plug it into a skrub DataOps plan. The main goal here is to show the integration pattern: PyTorch defines the model (an nn.Module), sk...
skrub-data.org
February 10, 2026 at 1:32 PM
- A new example has been added to show how skrub Data Ops can be used with pytorch and skorch to solve an image classification task.
skrub-data.org/stable/auto_...
skrub-data.org/stable/auto_...
Reposted by Gaël Varoquaux
Main changes:
- The StringEncoder now exposes the vocabulary parameter, allowing it to be passed to the underlying TfidfVectorizer.
- The function compute_ngram_distance has been made private to reduce clutter.
- The repository wheel has been made smaller by removing some benchmarking material.
- The StringEncoder now exposes the vocabulary parameter, allowing it to be passed to the underlying TfidfVectorizer.
- The function compute_ngram_distance has been made private to reduce clutter.
- The repository wheel has been made smaller by removing some benchmarking material.
February 10, 2026 at 1:32 PM
Main changes:
- The StringEncoder now exposes the vocabulary parameter, allowing it to be passed to the underlying TfidfVectorizer.
- The function compute_ngram_distance has been made private to reduce clutter.
- The repository wheel has been made smaller by removing some benchmarking material.
- The StringEncoder now exposes the vocabulary parameter, allowing it to be passed to the underlying TfidfVectorizer.
- The function compute_ngram_distance has been made private to reduce clutter.
- The repository wheel has been made smaller by removing some benchmarking material.
Reposted by Gaël Varoquaux
✨ skrub version 0.7.2 has been released ✨
In this release we squashed more bugs, improved the API reference, and added a new example.
github.com/skrub-data/s...
In this release we squashed more bugs, improved the API reference, and added a new example.
github.com/skrub-data/s...
Release Skrub release 0.7.2 · skrub-data/skrub
✨ skrub version 0.7.2 has been released ✨
In this release we squashed more bugs, improved the API reference, and added a new example.
Main changes:
The StringEncoder now exposes the vocabulary par...
github.com
February 10, 2026 at 1:32 PM
✨ skrub version 0.7.2 has been released ✨
In this release we squashed more bugs, improved the API reference, and added a new example.
github.com/skrub-data/s...
In this release we squashed more bugs, improved the API reference, and added a new example.
github.com/skrub-data/s...
Reposted by Gaël Varoquaux
At the end, you get a fully-fledged Optuna study to work
with. Of course, that includes support for the Optuna dashboard and access to the Optuna reporting and plotting interfaces.
with. Of course, that includes support for the Optuna dashboard and access to the Optuna reporting and plotting interfaces.
February 5, 2026 at 8:52 AM
At the end, you get a fully-fledged Optuna study to work
with. Of course, that includes support for the Optuna dashboard and access to the Optuna reporting and plotting interfaces.
with. Of course, that includes support for the Optuna dashboard and access to the Optuna reporting and plotting interfaces.
Reposted by Gaël Varoquaux
Did you know that the skrub Data Ops support Optuna as backend to run hyperparameter search?
It's as easy as writing "backend='optuna'": this will set up a default Optuna study (and the TPE sampler) to replace the standard random sampler.
It's as easy as writing "backend='optuna'": this will set up a default Optuna study (and the TPE sampler) to replace the standard random sampler.
February 5, 2026 at 8:52 AM
Did you know that the skrub Data Ops support Optuna as backend to run hyperparameter search?
It's as easy as writing "backend='optuna'": this will set up a default Optuna study (and the TPE sampler) to replace the standard random sampler.
It's as easy as writing "backend='optuna'": this will set up a default Optuna study (and the TPE sampler) to replace the standard random sampler.
Reposted by Gaël Varoquaux
On a relevé les compteurs vélo et on n'a pas été déçus 🤗 ! Des cumuls 2025 impressionnants sur les compteurs placés aux 4 coins d'Antony et des augmentations de fréquentation vraiment importantes !
Nous comptons bien nous appuyer sur cette affluence pour défendre les intérêts des cyclistes ! 🚴♂️🚴♀️
Nous comptons bien nous appuyer sur cette affluence pour défendre les intérêts des cyclistes ! 🚴♂️🚴♀️
February 1, 2026 at 8:10 AM
On a relevé les compteurs vélo et on n'a pas été déçus 🤗 ! Des cumuls 2025 impressionnants sur les compteurs placés aux 4 coins d'Antony et des augmentations de fréquentation vraiment importantes !
Nous comptons bien nous appuyer sur cette affluence pour défendre les intérêts des cyclistes ! 🚴♂️🚴♀️
Nous comptons bien nous appuyer sur cette affluence pour défendre les intérêts des cyclistes ! 🚴♂️🚴♀️
Reposted by Gaël Varoquaux
La tristesse de cette cycliste morte écrasée dans mon quartier + l'indécence de la réaction du ministre Tabarot indiquant "le renforcement de la signalisation des angles morts sur les poids-lourds" : un sticker sur un poids lourd n'a jamais empêché personne de se faire écraser !
Nouvel accident mortel à Paris, comme très souvent voire toujours à cause d'un poids-lourd qui tourne à droite… dans un carrefour sans amande pour l'obliger à tourner large :-/
www.leparisien.fr/paris-75/par...
www.leparisien.fr/paris-75/par...
Paris : une cycliste mortellement percutée par un camion dans le XIIe arrondissement
Ce mardi matin, une cycliste a été percutée par un camion à l’intersection de la rue de Reuilly et du boulevard Diderot. L’accident lui a co
www.leparisien.fr
January 27, 2026 at 9:32 PM
La tristesse de cette cycliste morte écrasée dans mon quartier + l'indécence de la réaction du ministre Tabarot indiquant "le renforcement de la signalisation des angles morts sur les poids-lourds" : un sticker sur un poids lourd n'a jamais empêché personne de se faire écraser !
Reposted by Gaël Varoquaux
Les élections municipales approchent. Voici les différents points sur lesquels nous souhaitons que les candidats d'Antony se positionnent.
Il faut que la volonté politique accompagne cette évolution des pratiques à Antony (+34% de participation au Baromètre vélo 2025)
Il faut que la volonté politique accompagne cette évolution des pratiques à Antony (+34% de participation au Baromètre vélo 2025)
January 17, 2026 at 8:27 PM
Les élections municipales approchent. Voici les différents points sur lesquels nous souhaitons que les candidats d'Antony se positionnent.
Il faut que la volonté politique accompagne cette évolution des pratiques à Antony (+34% de participation au Baromètre vélo 2025)
Il faut que la volonté politique accompagne cette évolution des pratiques à Antony (+34% de participation au Baromètre vélo 2025)
Reposted by Gaël Varoquaux
Scikit-learn is on the @linuxfoundation.org Open Source Insights board, alongside with many other central projects:
insights.linuxfoundation.org/project/scik...
What an honor to contribute to the open-source tissue that cements the world!
insights.linuxfoundation.org/project/scik...
What an honor to contribute to the open-source tissue that cements the world!
January 16, 2026 at 9:55 AM
Scikit-learn is on the @linuxfoundation.org Open Source Insights board, alongside with many other central projects:
insights.linuxfoundation.org/project/scik...
What an honor to contribute to the open-source tissue that cements the world!
insights.linuxfoundation.org/project/scik...
What an honor to contribute to the open-source tissue that cements the world!
Reposted by Gaël Varoquaux
✨ 1 JOUR, 1 CANDIDATE SUR LA LISTE « Antony Terre Citoyenne »✨
Pour continuer cette série de publications visant à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à Emmanuelle Gouillart, en deuxième position sur la liste !
Pour continuer cette série de publications visant à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à Emmanuelle Gouillart, en deuxième position sur la liste !
January 14, 2026 at 4:56 PM
✨ 1 JOUR, 1 CANDIDATE SUR LA LISTE « Antony Terre Citoyenne »✨
Pour continuer cette série de publications visant à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à Emmanuelle Gouillart, en deuxième position sur la liste !
Pour continuer cette série de publications visant à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à Emmanuelle Gouillart, en deuxième position sur la liste !
Reposted by Gaël Varoquaux
✨1 JOUR, 1 CANDIDAT SUR LA LISTE « Antony Terre Citoyenne »✨
Commençons cette série de posts qui vise à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à David Mauger, tête de liste qui présente son parcours et les ambitions du collectif pour Antony.
Commençons cette série de posts qui vise à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à David Mauger, tête de liste qui présente son parcours et les ambitions du collectif pour Antony.
January 12, 2026 at 6:03 PM
✨1 JOUR, 1 CANDIDAT SUR LA LISTE « Antony Terre Citoyenne »✨
Commençons cette série de posts qui vise à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à David Mauger, tête de liste qui présente son parcours et les ambitions du collectif pour Antony.
Commençons cette série de posts qui vise à vous présenter nos candidats aux élections municipales 2026 à Antony, nous donnons la parole à David Mauger, tête de liste qui présente son parcours et les ambitions du collectif pour Antony.
Reposted by Gaël Varoquaux
Position de la SMF sur le danger des ZRR
Mathématiques, DGSI, et ZRR : immixtion impossible | Société Mathématique de France
Le 11 février 2025, trois de nos collègues*, en poste dans des universités françaises distinctes, étaient simultanément arrêtés à leur domicile respectif. L'un des trois travaille dans un laboratoire ...
smf.emath.fr
January 8, 2026 at 4:06 PM
Position de la SMF sur le danger des ZRR
Reposted by Gaël Varoquaux
David Mauger, tête de liste du collectif Antony Terre Citoyenne, vous présente ses meilleurs vœux pour l’année 2026.
January 9, 2026 at 5:12 PM
David Mauger, tête de liste du collectif Antony Terre Citoyenne, vous présente ses meilleurs vœux pour l’année 2026.
Je suis très honoré de cette belle reconnaissance et de ce beau portrait, qui parle non seulement de mes convictions en logiciel libre et IA, mais aussi de l'humain derrière, et de comment les communs numériques s'inscrivent dans notre société
www.decideurs-magazine.com/digital-mark...
www.decideurs-magazine.com/digital-mark...
Personnalité de l’année 2025 : Gaël Varoquaux, architecte d’un commu...
Chercheur à l’Inria et fondateur de la bibliothèque algorithmique Scikit-learn et de la start-up Probabl, Gaël Varoquaux consacre son quotidien à la valorisation des données. Il contribue à bâtir des....
www.decideurs-magazine.com
January 7, 2026 at 7:02 PM
Je suis très honoré de cette belle reconnaissance et de ce beau portrait, qui parle non seulement de mes convictions en logiciel libre et IA, mais aussi de l'humain derrière, et de comment les communs numériques s'inscrivent dans notre société
www.decideurs-magazine.com/digital-mark...
www.decideurs-magazine.com/digital-mark...
Reposted by Gaël Varoquaux
This evening, @gaelvaroquaux.bsky.social spoke to the CSS seminar @crestumr.bsky.social ! Thanks for this discussion on AI & society, and I agree completely on your roadmap of "making good AI sustainable", and that the question comes first, then the tool !
January 7, 2026 at 5:01 PM
This evening, @gaelvaroquaux.bsky.social spoke to the CSS seminar @crestumr.bsky.social ! Thanks for this discussion on AI & society, and I agree completely on your roadmap of "making good AI sustainable", and that the question comes first, then the tool !
Finally did it! A glitter @scikit-learn.org sticker on my bike helmet.
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
January 4, 2026 at 8:21 PM
Finally did it! A glitter @scikit-learn.org sticker on my bike helmet.
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
Finally did it! A glitter @scikit-learn.org -learn sticker on my bike helmet.
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
January 4, 2026 at 8:21 PM
Finally did it! A glitter @scikit-learn.org -learn sticker on my bike helmet.
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
If you're around Saclay, Massy, ... and you see me go by on my bike, go ahead and cheer!
Reposted by Gaël Varoquaux
Si vous vous demandez ce que vous, oui VOUS, pouvez faire à votre niveau quand les USA deviennent une menace pour le monde entier : virer Windows/Mac, les services Google, Amazon. Ne plus *dépendre* d'eux.
January 3, 2026 at 10:49 AM
Si vous vous demandez ce que vous, oui VOUS, pouvez faire à votre niveau quand les USA deviennent une menace pour le monde entier : virer Windows/Mac, les services Google, Amazon. Ne plus *dépendre* d'eux.
The US are rapidly becoming a fascist state (I weigh my words).
The speed of this transformation should be a warning to all of us, not only those living in the US.
Democracy, functioning societies, are fragile. Living without them is hell.
The speed of this transformation should be a warning to all of us, not only those living in the US.
Democracy, functioning societies, are fragile. Living without them is hell.
Retired immigration judge to @radleybalko.bsky.social: "It always starts with the minorities. It always starts with the immigrants. If we don’t stop them, it will be American citizens. We need to be screaming that this isn’t America—that this isn’t who we are" newrepublic.com/article/2042...
Trump’s Immigration Nightmare: It Is Happening Here
With astonishing speed, the administration has toppled the most cherished pillars of a free society. And the experts agree: It’s all going to get much, much worse.
newrepublic.com
January 2, 2026 at 10:48 PM
The US are rapidly becoming a fascist state (I weigh my words).
The speed of this transformation should be a warning to all of us, not only those living in the US.
Democracy, functioning societies, are fragile. Living without them is hell.
The speed of this transformation should be a warning to all of us, not only those living in the US.
Democracy, functioning societies, are fragile. Living without them is hell.
My 2025 highlights for AI research and code:
▪ Unpacking the AI scale narrative
▪ Tabular-learning research
- TabICL: table foundation model
- Retrieve merge predict: data lakes
▪ Better software
- Skrub: machine learning with tables
- Fundamentals in scikit-learn
gael-varoquaux.info/science/2025...
▪ Unpacking the AI scale narrative
▪ Tabular-learning research
- TabICL: table foundation model
- Retrieve merge predict: data lakes
▪ Better software
- Skrub: machine learning with tables
- Fundamentals in scikit-learn
gael-varoquaux.info/science/2025...
2025 highlights: AI research and code
AI is everywhere. Can you see it here? Note Some highlights about my work in 2025: progress on tabular-learning stands out, a publication on unpacking trade-off and consequences of scale in...
gael-varoquaux.info
January 2, 2026 at 1:45 PM
My 2025 highlights for AI research and code:
▪ Unpacking the AI scale narrative
▪ Tabular-learning research
- TabICL: table foundation model
- Retrieve merge predict: data lakes
▪ Better software
- Skrub: machine learning with tables
- Fundamentals in scikit-learn
gael-varoquaux.info/science/2025...
▪ Unpacking the AI scale narrative
▪ Tabular-learning research
- TabICL: table foundation model
- Retrieve merge predict: data lakes
▪ Better software
- Skrub: machine learning with tables
- Fundamentals in scikit-learn
gael-varoquaux.info/science/2025...
Dusk falls on the Eiffel tower - Paris
This shot was taken from the @probabl.ai offices, on the 27th floor of the "Tour Montparnasse", the only high-riser of inner Paris
Click through for details and highres image
www.flickr.com/photos/gaelv...
This shot was taken from the @probabl.ai offices, on the 27th floor of the "Tour Montparnasse", the only high-riser of inner Paris
Click through for details and highres image
www.flickr.com/photos/gaelv...
Dusk falls on the Eiffel tower - Paris
This shot was taken from the :Probabl. offices, on the 27th floor of the "Tour Montparnasse", the only high-riser of inner Paris. The view is that of the Eiffel tower, and far behind it the business d...
www.flickr.com
December 30, 2025 at 5:43 PM
Dusk falls on the Eiffel tower - Paris
This shot was taken from the @probabl.ai offices, on the 27th floor of the "Tour Montparnasse", the only high-riser of inner Paris
Click through for details and highres image
www.flickr.com/photos/gaelv...
This shot was taken from the @probabl.ai offices, on the 27th floor of the "Tour Montparnasse", the only high-riser of inner Paris
Click through for details and highres image
www.flickr.com/photos/gaelv...
Hi everyone,
If you like @scikit-learn.org, how about upvoting my request to add it to the LinuxFoundation insight board:
github.com/linuxfoundat...
Thanks 🧡💙
If you like @scikit-learn.org, how about upvoting my request to add it to the LinuxFoundation insight board:
github.com/linuxfoundat...
Thanks 🧡💙
Add scikit-learn · linuxfoundation insights · Discussion #1506
We'd like to request enrolling scikit-learn into LFX Insights. The GitHub org is https://github.com/scikit-learn/scikit-learn. Scikit-learn is the most used machine learning library: download numbe...
github.com
December 28, 2025 at 9:40 PM
Hi everyone,
If you like @scikit-learn.org, how about upvoting my request to add it to the LinuxFoundation insight board:
github.com/linuxfoundat...
Thanks 🧡💙
If you like @scikit-learn.org, how about upvoting my request to add it to the LinuxFoundation insight board:
github.com/linuxfoundat...
Thanks 🧡💙