@article{JMLR:v8:melnik07a,
  author  = {Ofer Melnik and Yehuda Vardi and Cun-Hui Zhang},
  title   = {Concave Learners for Rankboost},
  journal = {Journal of Machine Learning Research},
  year    = {2007},
  volume  = {8},
  number  = {29},
  pages   = {791--812},
  url     = {http://jmlr.org/papers/v8/melnik07a.html}
}