@InProceedings{xu-gunawardana-khudanpur:2011:EMNLP,
  author    = {Xu, Puyang  and  Gunawardana, Asela  and  Khudanpur, Sanjeev},
  title     = {Efficient Subsampling for Training Complex Language Models},
  booktitle = {Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing},
  month     = {July},
  year      = {2011},
  address   = {Edinburgh, Scotland, UK.},
  publisher = {Association for Computational Linguistics},
  pages     = {1128--1136},
  url       = {http://www.aclweb.org/anthology/D11-1104}
}