@inproceedings{liang2016robust,
  title={Robust Contextual Outlier Detection: Where Context Meets Sparsity},
  author={Liang, Jiongqian and Parthasarathy, Srinivasan},
  booktitle={Proceedings of the 25th ACM International on Conference on Information and Knowledge Management},
  pages={2167--2172},
  year={2016},
  organization={ACM}
}