@misc{zhang2019bridging,
  title={Bridging the Gap Between Anchor-based and Anchor-free Detection via Adaptive Training Sample Selection},
  author={Shifeng Zhang and Cheng Chi and Yongqiang Yao and Zhen Lei and Stan Z. Li},
  year={2019},
  eprint={1912.02424},
  archivePrefix={arXiv},
  primaryClass={cs.CV},
  url={https://arxiv.org/abs/1912.02424}
}