@InProceedings{zhou-EtAl:2007:EMNLP-CoNLL2007,
  author    = {Zhou, GuoDong  and  Zhang, Min  and  Ji, DongHong  and  Zhu, QiaoMing},
  title     = {Tree Kernel-Based Relation Extraction with Context-Sensitive Structured Parse Tree Information},
  booktitle = {Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL)},
  pages     = {728--736},
  url       = {http://www.aclweb.org/anthology/D/D07/D07-1076}
}