@article{JMLR:v18:17-159,
  author  = {Shuhan Liang and Wenbin Lu and Rui Song and Lan Wang},
  title   = {Sparse Concordance-assisted Learning for Optimal Treatment Decision},
  journal = {Journal of Machine Learning Research},
  year    = {2018},
  volume  = {18},
  number  = {202},
  pages   = {1--26},
  url     = {http://jmlr.org/papers/v18/17-159.html}
}