@InProceedings{koehn-knowles:2017:NMT,
  author    = {Koehn, Philipp  and  Knowles, Rebecca},
  title     = {Six Challenges for Neural Machine Translation},
  booktitle = {Proceedings of the First Workshop on Neural Machine Translation},
  month     = {August},
  year      = {2017},
  address   = {Vancouver},
  publisher = {Association for Computational Linguistics},
  pages     = {28--39},
  abstract  = {We explore six challenges for neural machine translation: domain mismatch,
	amount of training data, rare words, long sentences, word alignment, and beam
	search. We show both deficiencies and improvements over the quality of
	phrase-based statistical machine translation.},
  url       = {http://www.aclweb.org/anthology/W17-3204}
}