@article{rewardoptimizationforneuralmachine,
  title = {Reward Optimization for Neural Machine Translation with Learned Metrics},
  author = {Raphael Shu and Kang Min Yoo and Jung-Woo Ha},
  year = {2021},
  eprint = {2104.07541},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2104.07541v1},
}