Loose L 1/2 regularised sparse representation for face recognition

@article{Zhong2015LooseL1,
  title={Loose L 1/2 regularised sparse representation for face recognition},
  author={Dexing Zhong and Zichao Xie and Yan-Rui Li and Jiuqiang Han},
  journal={IET Computer Vision},
  year={2015},
  volume={9},
  pages={251-258}
}