@inproceedings{chen2021orthant,
  title={Orthant Based Proximal Stochastic Gradient Method for L1-Regularized Optimization},
  author={Chen, Tianyi and Ding, Tianyu and Ji, Bo and Wang, Guanyi and Shi, Yixin and Tian, Jing and Yi, Sheng and Tu, Xiao and Zhu, Zhihui},
  booktitle={Machine Learning and Knowledge Discovery in Databases: European Conference, ECML PKDD 2020, Ghent, Belgium, September 14--18, 2020, Proceedings, Part III},
  pages={57--73},
  year={2021},
  organization={Springer}
}