To cite HCR in publications use:

Ruichu Cai, Jie Qiao, Kun Zhang, Zhenjie Zhang, Zhifeng Hao. Causal Discovery from Discrete Data using Hidden Compact Representation. NIPS 2018.

Corresponding BibTeX entry:

  @InProceedings{,
    title = {Causal Discovery from Discrete Data using Hidden Compact
      Representation},
    author = {Ruichu Cai and Jie Qiao and Kun Zhang and Zhenjie Zhang
      and Zhifeng Hao},
    booktitle = {Advances in Neural Information Processing Systems},
    year = {2018},
  }