@InProceedings{yu-EtAl:2013:IJCNLP,
  author    = {Yu, Heng  and  Su, Jinsong  and  Lv, Yajuan  and  Liu, Qun},
  title     = {A Topic-Triggered Language Model for Statistical Machine Translation},
  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     = {447--454},
  url       = {http://www.aclweb.org/anthology/I13-1051}
}