@article{emotionalchattingmachineemotional,
  title = {Emotional Chatting Machine: Emotional Conversation Generation with Internal and External Memory},
  author = {Hao Zhou and Minlie Huang and Tianyang Zhang and Xiaoyan Zhu and Bing Liu},
  year = {2017},
  eprint = {1704.01074},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1704.01074v4},
}