@article{theoryofdualsparseregularizedrandomized,
  title = {Theory of Dual-sparse Regularized Randomized Reduction},
  author = {Tianbao Yang and Lijun Zhang and Rong Jin and Shenghuo Zhu},
  year = {2015},
  eprint = {1504.03991},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1504.03991v4},
}