Hong, Jiwoo, Sayak Paul, Noah Lee, Kashif Rasul, James Thorne, and Jongheon Jeong. 2026. “Margin-Aware Preference Optimization for Aligning Diffusion Models Without Reference”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (6):4744-52. https://doi.org/10.1609/aaai.v40i6.42476.