@article{zhang2018empirical,
  title={An Empirical Exploration of Curriculum Learning for Neural Machine Translation},
  author={Zhang, Xuan and Kumar, Gaurav and Khayrallah, Huda and Murray, Kenton and Gwinnup, Jeremy and Martindale, Marianna J and McNamee, Paul and Duh, Kevin and Carpuat, Marine},
  journal={arXiv preprint arXiv:1811.00739},
  year={2018}
}