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Powering Up Zeroth-Order Training via Subspace Gradient Orthogonalization
Subspace gradient orthogonalization unifies low-rank projection with spectral optimization into ZO-Muon, cutting zeroth-order queries by 75% versus MeZO while boosting accuracy on LLM and vision fine-tuning.
Atlanta Poster Session 3, Thu, Dec 10, 10:00 AM–1:00 PM, Hall C1 · Published 2026
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AI panel: 14 of 20 reviewers recommend it
lenient 4/5
medium 8/10
strict 2/5