@misc{qiu2021sourcefree,
      title={Source-free Domain Adaptation via Avatar Prototype Generation and Adaptation}, 
      author={Zhen Qiu and Yifan Zhang and Hongbin Lin and Shuaicheng Niu and Yanxia Liu and Qing Du and Mingkui Tan},
      year={2021},
      eprint={2106.15326},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}