@inproceedings{li2011learning,
  title={Learning to identify review spam},
  author={Li, Fangtao and Huang, Minlie and Yang, Yi and Zhu, Xiaoyan},
  booktitle={IJCAI Proceedings-International Joint Conference on Artificial Intelligence},
  volume={22},
  number={3},
  pages={2488--2493},
  year={2011}
}