@InProceedings{chen-EtAl:2006:COLACL,
  author    = {Chen, Jinxiu  and  Ji, Donghong  and  Tan, Chew Lim  and  Niu, Zhengyu},
  title     = {Relation Extraction Using Label Propagation Based Semi-Supervised Learning},
  booktitle = {Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2006},
  address   = {Sydney, Australia},
  publisher = {Association for Computational Linguistics},
  pages     = {129--136},
  url       = {http://www.aclweb.org/anthology/P06-1017},
  doi       = {10.3115/1220175.1220192}
}