PISA: Piecewise Sparse Attention Is Wiser for Efficient Diffusion Transformers.

Sun, 01 Feb 2026 00:00:00 +0100

Haopeng Li, Shitong Shao, Wenliang Zhong, Zikai Zhou, Lichen Bai, Hui Xiong, Zeke Xie:
PISA: Piecewise Sparse Attention Is Wiser for Efficient Diffusion Transformers. CoRR abs/2602.01077 (2026)