2 papers
cs.CV2025
Beyond Reward Margin: Rethinking and Resolving Likelihood Displacement in Diffusion Models via Video Generation
Ruojun Xu, Yu Kai, Xuhua Ren +4
Direct Preference Optimization (DPO) has shown promising results in aligning generative outputs with human preferences by distinguishing between chosen and rejected samples. Howeve…
cs.CV2025
StyleSSP: Sampling StartPoint Enhancement for Training-free Diffusion-based Method for Style Transfer
Ruojun Xu, Weijie Xi, Xiaodi Wang +2
Training-free diffusion-based methods have achieved remarkable success in style transfer, eliminating the need for extensive training or fine-tuning. However, due to the lack of ta…