Average Gradient Outer Product in kernel regression provably recovers the central subspace for multi-index models

Libin Zhu, Damek Davis, Dmitriy Drusvyatskiy, Maryam Fazel

By Callan Zhang · May 14, 2026 · Editorial standards →

Summarised from the primary source with AI assistance under human editorial oversight. Turing Wire is not a primary source — read the original for the authoritative account.

Source: arXiv cs.LG