@article{JMLR:v17:15-390,
  author  = {Lei Yang and Shaogao Lv and Junhui Wang},
  title   = {Model-free Variable Selection in Reproducing Kernel Hilbert Space},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {82},
  pages   = {1--24},
  url     = {http://jmlr.org/papers/v17/15-390.html}
}