@InProceedings{fu-grishman:2013:IJCNLP,
  author    = {Fu, Lisheng  and  Grishman, Ralph},
  title     = {An Efficient Active Learning Framework for New Relation Types},
  booktitle = {Proceedings of the Sixth International Joint Conference on Natural Language Processing},
  month     = {October},
  year      = {2013},
  address   = {Nagoya, Japan},
  publisher = {Asian Federation of Natural Language Processing},
  pages     = {692--698},
  url       = {http://www.aclweb.org/anthology/I13-1081}
}