Charles Arnal (@arnal_charles) 's Twitter Profile
Charles Arnal

@arnal_charles

Postdoc at @MetaAI, mathematician

ENS, Cambridge, Inria, FAIR at Meta

ID: 1610970539920687105

linkhttps://charlesarnal.github.io/ calendar_today05-01-2023 12:04:57

13 Tweet

83 Followers

166 Following

Gary Shiu (@gary_shiu) 's Twitter Profile Photo

Excited to share with you an exciting project with Jacky Yip UW-Madison Physics and Charles Arnal and François Charton Meta where we develop a transformer model to automate the generation of Calabi-Yau manifolds, extra dimensional spaces in string theory: arxiv.org/abs/2507.03732

Excited to share with you an exciting project with Jacky Yip <a href="/UWMadPhysics/">UW-Madison Physics</a> and <a href="/arnal_charles/">Charles Arnal</a> and <a href="/f_charton/">François Charton</a> <a href="/Meta/">Meta</a> where we develop a transformer model to automate the generation of Calabi-Yau manifolds, extra dimensional spaces in string theory: arxiv.org/abs/2507.03732
Julia Kempe (@kempelab) 's Twitter Profile Photo

Black-box Optimization for LLM Post-Training 💪 Strong non-vacuous generalization bounds ✔️ Privacy by design ✔️ Robustness to poisoning and data extraction ✔️ Improvement on reasoning benchmarks ✔️ AI at Meta NYU Center for Data Science (1/8)

Black-box Optimization for LLM Post-Training 💪
Strong non-vacuous generalization bounds ✔️
Privacy by design ✔️
Robustness to poisoning and data extraction ✔️
Improvement on reasoning benchmarks ✔️
<a href="/AIatMeta/">AI at Meta</a> <a href="/NYUDataScience/">NYU Center for Data Science</a>
(1/8)
Yuda Song @ ICLR 2025 (@yus167) 's Twitter Profile Photo

LLMs lose diversity after RL post-training, and this hurts test-time scaling & creativity. Why does this collapse happen, and how can we fix it? Our new work introduces: 🔍 RL as Sampling (analysis) 🗺️ Outcome-based Exploration (intervention) [1/n]

LLMs lose diversity after RL post-training, and this hurts test-time scaling &amp; creativity.
Why does this collapse happen, and how can we fix it?
Our new work introduces:
🔍 RL as Sampling (analysis)  
🗺️ Outcome-based Exploration (intervention) 
[1/n]