@InProceedings{shu-EtAl:2016:EMNLP2016,
  author    = {Shu, Lei  and  Liu, Bing  and  Xu, Hu  and  Kim, Annice},
  title     = {Lifelong-RL: Lifelong Relaxation Labeling for Separating Entities and Aspects in Opinion Targets},
  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     = {225--235},
  url       = {https://aclweb.org/anthology/D16-1022}
}