@article{8:29,author={Ofer Melnik and Yehuda Vardi and Cun-Hui Zhang}, Title={Concave Learners for Rankboost},journal={Journal of Machine Learning Research},volume={8}, url={http://www.jmlr.org/papers/volume8/melnik07a/melnik07a.pdf}}
Concave Learners for Rankboost.pdf