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Yoav Gelberg
About Me
I'm a graduate student at the University of Oxford, working with Haggai Maron, Michael Bronstein and Yarin Gal. My research focuses on the symmetry and structure of neural network parameter spaces with application to deep (meta-)learning. I'm also interested in architecture reserach more broadly and in the way structure can inform learning. I spent the summer of 2025 at Sakana AI, working on positional embeddings and length generalization in LLMs.
Before Oxford, I completed my undergraduate studies at the Technion as a Rothschild scholar, studied expander graphs at the Weizmann Institute, developed fair learning algorithms at Fairgen, and taught math and programming at the ARDC.
Selected Publications
* denotes equal contribution; full list on Google Scholar
GradMetaNet: An Equivariant Architecture for Learning on Gradients
Yoav Gelberg*, Yam Eitan*, Aviv Navon, Aviv Shamsian, Theo (Moe) Putterman, Michael Bronstein, Haggai Maron
NeurIPS 2025
Weight Space Learning Workshop @ ICLR 2025
Leaning on LoRAs: GL-Equivariant Processing of Low-Rank Weight Spaces for Large Finetuned Models
Theo (Moe) Putterman*, Derek Lim*, Yoav Gelberg, Stephanie Jegelka, Haggai Maron
LoG 2025, Oral Presentation 🎤
Weight Space Learning Workshop @ ICLR 2025
Misalignment Between Vision-Language Representations in Vision-Language Models
Yonatan Gideoni, Yoav Gelberg, Tim G. J. Rudner, Yarin Gal
UniReps + CogInterp Workshops @ NeurIPS 2025
Beyond Next Token Probabilities: Learnable, Fast Detection of Hallucinations and Data Contamination on LLM Output Distributions
Fabrizio Frasca*, Guy Bar-Shalom*, Derek Lim, Yoav Gelberg, Yftah Ziser, Ran El-Yaniv, Gal Chechik, Haggai Maron
AAAI 2026
R2-FM Workshop @ ICML 2025
Topological Blindspots: Understanding and Extending Topological Deep Learning Through the Lens of Expressivity
Yam Eitan*, Yoav Gelberg*, Guy Bar-Shalom, Fabrizio Frasca, Michael Bronstein, Haggai Maron
ICLR 2025, Oral Presentation 🎤
Variational Inference Failures Under Model Symmetries: Permutation Invariant Posteriors for Bayesian Neural Networks
Yoav Gelberg, Tycho van der Ouderaa, Mark van der Wilk, Yarin Gal
PMLR, GRaM Workshop @ ICML 2024, Best Paper Award 🏆