@InProceedings{qian-zhou:2011:IJCNLP-2011,
  author    = {Qian, Longhua  and  Zhou, Guodong},
  title     = {Dependency-directed Tree Kernel-based Protein-Protein Interaction Extraction from Biomedical Literature},
  booktitle = {Proceedings of 5th International Joint Conference on Natural Language Processing},
  month     = {November},
  year      = {2011},
  address   = {Chiang Mai, Thailand},
  publisher = {Asian Federation of Natural Language Processing},
  pages     = {10--19},
  url       = {http://www.aclweb.org/anthology/I11-1002}
}