@InProceedings{liu-EtAl:2015:EMNLP1,
  author    = {Liu, Chunyang  and  Liu, Yang  and  Sun, Maosong  and  Luan, Huanbo  and  Yu, Heng},
  title     = {Generalized Agreement for Bidirectional Word Alignment},
  booktitle = {Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing},
  month     = {September},
  year      = {2015},
  address   = {Lisbon, Portugal},
  publisher = {Association for Computational Linguistics},
  pages     = {1828--1836},
  url       = {https://aclweb.org/anthology/D/D15/D15-1210}
}