@InProceedings{hall-klein:2012:EMNLP-CoNLL,
  author    = {Hall, David  and  Klein, Dan},
  title     = {Training Factored PCFGs with Expectation Propagation},
  booktitle = {Proceedings of the 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning},
  month     = {July},
  year      = {2012},
  address   = {Jeju Island, Korea},
  publisher = {Association for Computational Linguistics},
  pages     = {1146--1156},
  url       = {http://www.aclweb.org/anthology/D12-1105}
}