@article{pisapiecewisesparseattentioniswiserforef,
  title = {PISA: Piecewise Sparse Attention Is Wiser for Efficient Diffusion Transformers},
  author = {Haopeng Li and Shitong Shao and Wenliang Zhong and Zikai Zhou and Lichen Bai and Hui Xiong and Zeke Xie},
  year = {2026},
  eprint = {2602.01077},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.01077},
}