Provable Benefit of SignGD: A Minimal Model Under Heavy-Tailed Class Imbalance

arXiv:2512.00763 · cs.LG, cs.AI · Submitted 2025-11-30 · Read on arXiv

cs.LG, cs.AI

Submitted: 2025-11-30

Updated: 2026-09-30

Terminology

• Adam — 1× in this paper · explained in 2 episodes
• Adaptive Algorithm — 1× in this paper · explained in 1 episode
• Gradient Descent — 1× in this paper
• Loss Function — 1× in this paper · explained in 2 episodes
• Preconditioner — 1× in this paper · explained in 2 episodes

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