@inproceedings{ijcai2016p274,
  title     = {Direct Sparsity Optimization Based Feature Selection for Multi-Class Classification},
  author    = {Peng, Hanyang and Fan, Yong},
  booktitle = {Proceedings of the Twenty-Fifth International Joint Conference on
               Artificial Intelligence, {IJCAI-16}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Subbarao Kambhampati},
  pages     = {1918--1923},
  year      = {2016},
  month     = {7},
  url       = {https://ijcai.org/proceedings/2016/274},
}