@InProceedings{kamigaito-EtAl:2014:EMNLP2014,
  author    = {Kamigaito, Hidetaka  and  Watanabe, Taro  and  Takamura, Hiroya  and  Okumura, Manabu},
  title     = {Unsupervised Word Alignment Using Frequency Constraint in Posterior Regularized EM},
  booktitle = {Proceedings of the 2014 Conference on Empirical Methods in Natural Language Processing (EMNLP)},
  month     = {October},
  year      = {2014},
  address   = {Doha, Qatar},
  publisher = {Association for Computational Linguistics},
  pages     = {153--158},
  url       = {http://www.aclweb.org/anthology/D14-1017}
}