@InProceedings{simion-collins-stein:2016:EMNLP2016,
  author    = {Simion, Andrei  and  Collins, Michael  and  Stein, Cliff},
  title     = {Towards a Convex HMM Surrogate for Word Alignment},
  booktitle = {Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing},
  month     = {November},
  year      = {2016},
  address   = {Austin, Texas},
  publisher = {Association for Computational Linguistics},
  pages     = {531--540},
  url       = {https://aclweb.org/anthology/D16-1051}
}