@InProceedings{wang-xiong-zhang:2015:EMNLP,
  author    = {Wang, Xing  and  Xiong, Deyi  and  Zhang, Min},
  title     = {Learning Semantic Representations for Nonterminals in Hierarchical Phrase-Based Translation},
  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     = {1391--1400},
  url       = {https://aclweb.org/anthology/D/D15/D15-1164}
}