@InProceedings{mitchell-boyer-lester:2013:SIGDIAL,
  author    = {Mitchell, Christopher  and  Boyer, Kristy  and  Lester, James},
  title     = {Evaluating State Representations for Reinforcement Learning of Turn-Taking Policies in Tutorial Dialogue},
  booktitle = {Proceedings of the SIGDIAL 2013 Conference},
  month     = {August},
  year      = {2013},
  address   = {Metz, France},
  publisher = {Association for Computational Linguistics},
  pages     = {339--343},
  url       = {http://www.aclweb.org/anthology/W13-4052}
}