@article{wang2014general,
  title={A general exponential framework for dimensionality reduction},
  author={Wang, Su-Jing and Yan, Shuicheng and Yang, Jian and Zhou, Chun-Guang and Fu, Xiaolan},
  journal={IEEE Transactions on Image Processing},
  volume={23},
  number={2},
  pages={920--930},
  year={2014},
  publisher={IEEE}
}