SPRINT: Sparse-Dense Residual Fusion for Efficient Diffusion Transformers - Park, Dogyun; Haji-Ali, Moayed; Li, Yanyu; Menapace, Willi; Tulyakov, Sergey; Kim, Hyunwoo; Siarohin, Aliaksandr; Kag, Anil (International Conference on Learning Representations, 2026)