@inproceedings{AAAI:2017:Li,<br>
  author =       {Zhe Li and Tianbao Yang and Lijun Zhang and Rong Jin},<br>
  title =        {A Two-Stage Approach for Learning a Sparse Model with Sharp Excess Risk Analysis},<br>
  booktitle =    {Proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI)},<br>
  year =         {2017},<br>
  pages =        {2224--2230},<br>
}