UniFL: Improve Latent Diffusion Model via Unified Feedback Learning - Zhang, Jiacheng; Wu, Jie; Ren, Yuxi; Xia, Xin; Kuang, Huafeng; Xie, Pan; Li, Jiashi; Xiao, Xuefeng; Huang, Weilin; Wen, Shilei; Fu, Lean; Li, Guanbin (Advances in Neural Information Processing Systems, 2024)