@InProceedings{chen-EtAl:2018:C18-12,
  author    = {Chen, Lu  and  Tan, Bowen  and  Long, Sishan  and  Yu, Kai},
  title     = {Structured Dialogue Policy with Graph Neural Networks},
  booktitle = {Proceedings of the 27th International Conference on Computational Linguistics},
  month     = {August},
  year      = {2018},
  address   = {Santa Fe, New Mexico, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {1257--1268},
  abstract  = {Recently, deep reinforcement learning (DRL) has been used for dialogue policy optimization. However, many DRL-based policies are not sample-efficient. },
  url       = {http://www.aclweb.org/anthology/C18-1107}
}