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Changjiang Gao

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#artificial intelligence Preprint Sep 2026

Drift-Constrained Optimization: Only Direction Matters in Fine-Tuning Instruct Models

The results suggest that fine-tuning is not just about how much a model changes, but how that change is spent, and that changing the accessible directions can qualitatively alter the outcome of fine-tuning.

Fei Yuan, Changjiang Gao, Yi-Le Tu et al. · 0 citations