@InProceedings{bing-EtAl:2016:W16-13,
  author    = {Bing, Lidong  and  Cohen, William  and  Dhingra, Bhuwan  and  Wang, Richard},
  title     = {Using Graphs of Classifiers to Impose Constraints on Semi-supervised Relation Extraction},
  booktitle = {Proceedings of the 5th Workshop on Automated Knowledge Base Construction},
  month     = {June},
  year      = {2016},
  address   = {San Diego, CA},
  publisher = {Association for Computational Linguistics},
  pages     = {1--6},
  url       = {http://www.aclweb.org/anthology/W16-1301}
}