Stochastic Self-Guidance for Training-Free Enhancement of Diffusion Models - Chen, Chubin; Zhu, Jiashu; Feng, Xiaokun; Huang, Nisha; Zhu, Chen; Wu, Meiqi; Mao, Fangyuan; Wu, Jiahong; Chu, Xiangxiang; Li, Xiu (International Conference on Learning Representations, 2026)