@article{190807705,
  title = {Copy-Enhanced Heterogeneous Information Learning for Dialogue State Tracking},
  author = {Qingbin Liu and Shizhu He and Kang Liu and Shengping Liu and Jun Zhao},
  year = {2019},
  eprint = {1908.07705},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1908.07705v1},
}