@article{yan2014casme,
  title={CASME II: An improved spontaneous micro-expression database and the baseline evaluation},
  author={Yan, Wen-Jing and Li, Xiaobai and Wang, Su-Jing and Zhao, Guoying and Liu, Yong-Jin and Chen, Yu-Hsin and Fu, Xiaolan},
  journal={PloS one},
  volume={9},
  number={1},
  pages={e86041},
  year={2014},
  publisher={Public Library of Science San Francisco, USA}
}