Dong Li Yang Wang Weijian Ni Yalou Huang Maoqiang Xie An Ensemble Approach to Learning to Rank. 101-105 2008 FSKD (2) http://dx.doi.org/10.1109/FSKD.2008.188 conf/fskd/2008-2 db/conf/fskd/fskd2008-2.html#LiWNHX08