@inproceedings{Yang2018Ncrfopen,
  title = {NCRF++: An Open-source Neural Sequence Labeling Toolkit},
  author = {Jie Yang and Yue Zhang},
  booktitle = {Annual Meeting of the Association for Computational Linguistics (ACL), Demo},
  year = {2018},
  url = {https://aclanthology.org/P18-4013/}
}