@InProceedings{carlson-EtAl:2009:SSLNLP,
  author    = {Carlson, Andrew  and  Betteridge, Justin  and  Hruschka Junior, Estevam Rafael  and  Mitchell, Tom M.},
  title     = {Coupling Semi-Supervised Learning of Categories and Relations},
  booktitle = {Proceedings of the NAACL HLT 2009 Workshop on Semi-supervised Learning for Natural Language Processing},
  month     = {June},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {1--9},
  url       = {http://www.aclweb.org/anthology/W09-2201}
}