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Using Human Feedback to Fine-tune Diffusion Models without Any Reward Model
March 26, 2024, 4:44 a.m. | Kai Yang, Jian Tao, Jiafei Lyu, Chunjiang Ge, Jiaxin Chen, Qimai Li, Weihan Shen, Xiaolong Zhu, Xiu Li
cs.LG updates on arXiv.org arxiv.org
Abstract: Using reinforcement learning with human feedback (RLHF) has shown significant promise in fine-tuning diffusion models. Previous methods start by training a reward model that aligns with human preferences, then leverage RL techniques to fine-tune the underlying models. However, crafting an efficient reward model demands extensive datasets, optimal architecture, and manual hyperparameter tuning, making the process both time and cost-intensive. The direct preference optimization (DPO) method, effective in fine-tuning large language models, eliminates the necessity for …
arxiv cs.ai cs.cv cs.lg diffusion diffusion models feedback human human feedback reward model type
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