activity
20222026
most citedRoadmap to Thermal Dark Matter Beyond the WIMP Unitarity Bound

18 citations · 18 across the 5 of their papers we have counts for

collaborators

6 papers

stat.ML2026

A Solvable Model of Adaptive Learning Rate Rescaling: Acceleration, Stability & Scaling

Itay Lavie, Clarissa Lauditi, Cengiz Pehlevan

A recurring design principle in modern optimizers is to decouple update magnitude from the raw gradient norm, yet its consequences for learning-curve and resource scaling remain un…

stat.ML2026

Statistical Properties of Training & Generalization

Itay Lavie, Noam Levi, Yonatan Kahn

Deep learning has managed to evade numerous intuitions from classical statistics to achieve unprecedented performance on a number of real-world tasks. In this article, we investiga…

stat.ML2026

Phase Transitions in Attention: A Bayesian Theory of Copy Head Emergence

Itay Lavie, Kirsten Fischer, Andrey Lekov +3

Attention is the key mechanism underlying in-context learning in transformers, and attention patterns have been observed empirically to emerge abruptly during training. We present…

stat.ML2024

Demystifying Spectral Bias on Real-World Data

Itay Lavie, Zohar Ringel

Kernel ridge regression (KRR) and Gaussian processes (GPs) are fundamental tools in statistics and machine learning, with recent applications to highly over-parameterized deep neur…

cs.LG2024

Towards Understanding Inductive Bias in Transformers: A View From Infinity

Itay Lavie, Guy Gur-Ari, Zohar Ringel

We study inductive bias in Transformers in the infinitely over-parameterized Gaussian process limit and argue transformers tend to be biased towards more permutation symmetric func…

hep-ph2022★ 18 cited

Roadmap to Thermal Dark Matter Beyond the WIMP Unitarity Bound

Ronny Frumkin, Eric Kuflik, Itay Lavie +1

We study the general properties of the freezeout of a thermal relic. We give analytic estimates of the relic abundance for an arbitrary freezeout process, showing when instantaneou…