@misc{huang2015bidirectional,
  title={Bidirectional LSTM-CRF Models for Sequence Tagging},
  author={Zhiheng Huang and Wei Xu and Kai Yu},
  year={2015},
  eprint={1508.01991},
  archivePrefix={arXiv},
  primaryClass={cs.CL},
  url={https://arxiv.org/abs/1508.01991}
}