@inproceedings{gao-EtAl:2002:ACL,
  author    = {Gao, Jianfeng  and  Goodman, Joshua  and  Cao, Guihong  and  Li, Hang},
  title     = {Exploring Asymmetric Clustering for Statistical Language Modeling},
  booktitle = {Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics (ACL)},
  year      = 2002,
  pages     = {183--190}
}