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DOHF: Online Diffusion Fine-tuning with Doob's $h$-transform Guidance

Guo, Zhengyi et al.
arXiv (All) · Papers
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artificial-intelligencemachine-learning
Reward-based diffusion fine-tuning faces practical challenges when desirable outcomes are rare or conditioning corrections are costly to estimate. In this work, we propose Diffusion Online $h$-guidance Fine-tuning (DOHF), which turns Doob's $h$-transform into a practical online training algorithm. D
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