Diffusion Alignment as Variational Expectation-Maximization. - Jaewoo Lee; Minsu Kim; Sanghyeok Choi; Inhyuck Song; Sujin Yun; Hyeongyu Kang; Woocheol Shin; Taeyoung Yun; Kiyoung Om; Jinkyoo Park (CoRR, 2025)