@inproceedings{li2009answering,
  title={Answering opinion questions with random walks on graphs},
  author={Li, Fangtao and Tang, Yang and Huang, Minlie and Zhu, Xiaoyan},
  booktitle={Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP: Volume 2-Volume 2},
  pages={737--745},
  year={2009},
  organization={Association for Computational Linguistics}
}