@InProceedings{tran-EtAl:2013:IJCNLP,
  author    = {Tran, Dang  and  Chu, Cuong  and  Pham, Son  and  Nguyen, Minh},
  title     = {Learning Based Approaches for Vietnamese Question Classification Using Keywords Extraction from the Web},
  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     = {740--746},
  url       = {http://www.aclweb.org/anthology/I13-1088}
}