jforests is a Java library that implements many tree-based learning algorithms.
Jforests has moved to https://github.com/yasserg/jforests
jforests can be used for regression, classification and ranking problems. The following tutorial shows how jforests can be used for learning a ranking model using the LambdaMART algorithm.
Learning to Rank with LambdaMART
Data Sets Format
jforests uses the following format for its input data sets (same as the one used in SVMLight):
.=. qid: : ... : .=. .=. .=. .=.
For this tutorial, we will use the sample data set which is available 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报 
