DANA/ADANA thread: momentum windows that grow with training improve scaling
_katieeverett · x · 2026-09-10
Katie Everett et al. discuss DANA/ADANA (Ferbach et al. 2025/2026), optimizers whose momentum windows grow linearly with training steps, improving scaling exponents in some regimes on power-law random features. This post asks whether a momentum schedule is even needed: longer horizons favor longer memory with smaller learning rates, and horizon-specific tuning improves AdamW baselines but doesn't fully explain ADANA's edge.
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