Learning to Rank tools Ranklib就是一套优秀的Learning to Rank领域的开源实现,其主页在:http://people.cs.umass.edu/~vdang/ranklib.html,从主页中可以看到实现了哪些方法。其中由微软发布的LambdaMART是IR业内常用的Learning to Rank模型
In this paper, RankNet, LambdaRank, LambdaMART and the XGBoost are studied and analyzed. The idea of improving the LambdaMART is proposed, that is,adding the regulation to the loss function of LambdaMART. Two commonly regulations L1 and L2 are added