@inproceedings{gu2012discriminative,
  title={Discriminative Metric: Schatten Norm vs. Vector Norm},
  author={Gu, Zhenghong and Shao, Ming and Li, Liangyue and Fu, Yun},
  booktitle={International Conference on Pattern Recognition},
  pages={1213--1216},
  year={2012},
  organization={IEEE}
}