@InProceedings{liu-EtAl:2011:CoNLL,
  author    = {Liu, Zhiyuan  and  Chen, Xinxiong  and  Zheng, Yabin  and  Sun, Maosong},
  title     = {Automatic Keyphrase Extraction by Bridging Vocabulary Gap},
  booktitle = {Proceedings of the Fifteenth Conference on Computational Natural Language Learning},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {135--144},
  url       = {http://www.aclweb.org/anthology/W11-0316}
}