Sébastien Lachapelle (@seblachap) 's Twitter Profile
Sébastien Lachapelle

@seblachap

Research Scientist at SAIL Montreal (Samsung) interested in causality and identifiable representation learning. PhD from @Mila_Quebec, @UMontrealDIRO

ID: 705445424711266304

linkhttps://slachapelle.github.io/ calendar_today03-03-2016 17:31:10

98 Tweet

718 Followers

469 Following

Romain Lopez (@_romain_lopez_) 's Twitter Profile Photo

Honored to be selected as a 2024 #STATWunderkind! Grateful for all my mentors & collaborators from Genentech and Stanford Medicine. Learn more about our work here: statnews.com/meet-the-2024-…

Honored to be selected as a 2024 #STATWunderkind! Grateful for all my mentors &amp; collaborators from <a href="/genentech/">Genentech</a> and <a href="/StanfordMed/">Stanford Medicine</a>. Learn more about our work here: statnews.com/meet-the-2024-…
Sébastien Lachapelle (@seblachap) 's Twitter Profile Photo

This was a really fun collaboration :) Working on this project allowed me to gain a better understanding of the linear representation hypothesis in LLM by formalizing it using ideas from identifiable/causal representation learning. Check it out!

Shruti Joshi (@_shruti_joshi_) 's Twitter Profile Photo

1\ Hi, can I get an unsupervised sparse autoencoder for steering, please? I only have unlabeled data varying across multiple unknown concepts. Oh, and make sure it learns the same features each time! Yes! A freshly brewed Sparse Shift Autoencoder (SSAE) coming right up. 🧶

1\ Hi, can I get an unsupervised sparse autoencoder for steering, please? I only have unlabeled data varying across multiple unknown concepts. Oh, and make sure it learns the same features each time!

Yes! A freshly brewed Sparse Shift Autoencoder (SSAE) coming right up. 🧶
Jack Brady (@jackhb98) 's Twitter Profile Photo

I'm at #ICLR2025 presenting our work on compositional generalization! (Sat. 10 AM; Hall 3 + Hall 2B, #310) We provide a general and unifying theory of compositional generalization, based on a new principle called interaction asymmetry! 📜 arxiv.org/abs/2411.07784 (See 🧵)

I'm at #ICLR2025 presenting our work on compositional generalization! (Sat. 10 AM; Hall 3 + Hall 2B, #310)

We provide a general and unifying theory of compositional generalization, based on a new principle called interaction asymmetry!

📜 arxiv.org/abs/2411.07784

(See 🧵)
Sébastien Lachapelle (@seblachap) 's Twitter Profile Photo

This was a really fun collaboration with folks from the Max Planck Institute in Tuebingen. Make sure to pass by our poster if you are at ICLR!

Sébastien Lachapelle (@seblachap) 's Twitter Profile Photo

In this one, we explore the linear properties of next-token predictors like LLMs through the lens of identifiability. I learned quite a bit while working on this project! In collaboration with folks from University of Trento and Copenhagen University!

Sébastien Lachapelle (@seblachap) 's Twitter Profile Photo

If you're at ICML on Saturday, check out our workshop paper on identifiable steering from multi-concept shifts in language models!

Fernando Rosas 🦋 (@_fernando_rosas) 's Twitter Profile Photo

Finally published: “Top-down and bottom-up neuroscience: overcoming the clash of research cultures” nature.com/articles/s41... Looking for ways to better understand different neuroscientific perspectives and enable productive collaborations

Finally published:
“Top-down and bottom-up neuroscience: overcoming the clash of research cultures”
nature.com/articles/s41...

Looking for ways to better understand different neuroscientific perspectives and enable productive collaborations