@InProceedings{zhao-wang-liu:2012:PAPERS,
  author    = {Zhao, Shiqi  and  Wang, Haifeng  and  Liu, Ting},
  title     = {User Behaviors Lend a Helping Hand: Learning Paraphrase Query Patterns from Search Log Sessions},
  booktitle = {Proceedings of COLING 2012},
  month     = {December},
  year      = {2012},
  address   = {Mumbai, India},
  publisher = {The COLING 2012 Organizing Committee},
  pages     = {3137--3152},
  url       = {http://www.aclweb.org/anthology/C12-1192}
}