@article{JMLR:v18:16-190,
  author  = {Yuting Ma and Tian Zheng},
  title   = {Stabilized Sparse Online Learning for Sparse Data},
  journal = {Journal of Machine Learning Research},
  year    = {2017},
  volume  = {18},
  number  = {131},
  pages   = {1--36},
  url     = {http://jmlr.org/papers/v18/16-190.html}
}