@misc{chen2019natural,
  title={Natural Question Generation with Reinforcement Learning Based Graph-to-Sequence Model},
  author={Yu Chen and Lingfei Wu and Mohammed J. Zaki},
  year={2019},
  eprint={1910.08832},
  archivePrefix={arXiv},
  primaryClass={cs.CL},
  url={https://arxiv.org/abs/1910.08832}
}