@misc{liu2020survey,
  title={A Survey on Sampling and Profiling over Big Data (Technical Report)},
  author={Zhicheng Liu and Aoqian Zhang},
  year={2020},
  eprint={2005.05079},
  archivePrefix={arXiv},
  primaryClass={cs.DB},
  url={https://arxiv.org/abs/2005.05079}
}