Posts

First day at Samsung
Today I’m starting in my new role as a Research Scientist at Samsung AI Center in Cambridge, UK. I’ll be part of the Distributed AI team and work on federated learning and distributed optimization.
Last updated on Jan 12, 2023 1 min read
Presenting at 2022 Workshop on FL and Analytics organized by Google
I’m taking part in the 2022 Workshop on Federated Learning and Analytics on 9 and 10 November. I am giving a talk about our work on Asynchronous SGD in the mini-workshop on Federated Systems at Scale on 9 November.
Last updated on Nov 10, 2022 1 min read
I'm giving a talk at Institut Henri Poincaré
I’m giving a talk at Séminaire Parisien d’Optimisation on 10 October. I will be presenting my work on second-order optimization, including the Super-Universal Newton paper.
Last updated on Oct 10, 2022 1 min read
I'm attending LOL2022
This week I’m participating in the Learning and Optimization in Luminy (LOL2022) workshop. Yesterday I gave a short presentation of our Super-Universal Newton paper.
Last updated on Oct 4, 2022 1 min read
Asynchronous SGD accepted at NeurIPS
Our paper on Asynchronous SGD was accepted for publication at NeurIPS 2022. Hopefully, I’ll present the paper in person in December, so feel free to drop me a message if you’re planning to attend as well.
Last updated on Sep 19, 2022 1 min read
2 new papers: Newton and adaptive gradient
We recently released two new papers that are available on arxiv as preprints. The first work considers the global convergence of regularized Newton method (short summary in this twitter thread) and the second work is about adaptive stepsizes for stochastic gradient descent.
Last updated on Aug 17, 2022 1 min read
ICML 2022: Outstanding Reviewer
I was selected among top 10% of reviewers at ICML this year.
Last updated on Aug 17, 2022 1 min read
Visiting Sebastian Stich in Germany
Between 22 June and 28 June, I visited Sebastian Stich, who works at CISPA Helmholtz Center for Information Security near Saarbrücken in Germany. We discusses new ways to solve nonconvex problems, and we already have some interesting results. Sebastian is also looking for PhD students, so if you or someone you know is looking for a good supervisor working on optimization, Sebastian should be the first person to contact!
Last updated on Jun 30, 2022 1 min read
New paper: Asynchronous SGD with arbitrary delays
My first ever optimization project was an ICML paper about an asynchronous gradient method. At the time, I was quite confused by the fact that no matter what I was doing, Asynchronous gradient descent still converged. Five years later, I can finally give an answer: Because Asynchronous SGD doesn’t care about the delays, which we proved in https://arxiv.org/abs/2206.07638 our new paper. For a short summary, you can read my twitter thread about the paper or check my slides.
Last updated on Aug 1, 2022 1 min read
I'm at attending SICO conference 12-15 June

In a few days, I am travelling to Autrans, Vercors near Grenoble for the SICO conference dedicated to the 60th birthday of Anatoli Juditsky. The conference will feature a number of speakers working on optimization and statistics. As I did my master’s thesis at the University of Grenoble, I’m really happy to go there again after having been away for almost 5 years.

On the last day of the conference, I will give a talk about a new paper on Asynchronous SGD. The work that I will present is also going to appear online quite soon.

Last updated on Jun 10, 2022 1 min read