@article{synhatatwostagecoarsetofinediffusionfram,
  title = {SynHAT: A Two-stage Coarse-to-Fine Diffusion Framework for Synthesizing Human Activity Traces},
  author = {Rongchao Xu and Lin Jiang and Dahai Yu and Ximiao Li and Guang Wang},
  year = {2026},
  eprint = {2604.14705},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.14705},
}