@InProceedings{yan-EtAl:2013:IJCNLP,
  author    = {Yan, Rui  and  Jiang, Han  and  Lapata, Mirella  and  Lin, Shou-De  and  Lv, Xueqiang  and  Li, Xiaoming},
  title     = {Semantic v.s. Positions: Utilizing Balanced Proximity in Language Model Smoothing for Information Retrieval},
  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     = {507--515},
  url       = {http://www.aclweb.org/anthology/I13-1058}
}