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math.ST2026
Statistical-Computational Trade-offs in Learning Multi-Index Models via Harmonic Analysis
Hugo Latourelle-Vigeant, Theodor Misiakiewicz
We study the problem of learning multi-index models (MIMs), where the label depends on the input only through an unknown -dimensional…
math.ST2025
When does Gaussian equivalence fail and how to fix it: Non-universal behavior of random features with quadratic scaling
Garrett G. Wen, Hong Hu, Yue M. Lu +2
A major effort in modern high-dimensional statistics has been devoted to the analysis of linear predictors trained on nonlinear feature embeddings via empirical risk minimization (…