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Qing-Yan Wei

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Preprint Aug 2026

STEP-OPD: Rethinking Output Targets and Internal Dynamics in On-Policy Distillation for Diffusion Models

STEP-OPD is proposed, an on-policy distillation framework for image generation that extends the student's learning target beyond the teacher and introduces explicit constraints on its internal representation evolution, showing that output extrapolation enables beyond-teacher learning.

Qing-Yan Wei, Guang-Zhao Li, Xiao-Bing Tu et al. · 1 citation

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