摘要: XGBoost训练: It is not easy to train all the trees at once. Instead, we use an additive strategy: fix what we have learned, and add one new tree at a ti 阅读全文
posted @ 2017-04-01 16:53 合唱团abc 阅读(4670) 评论(0) 推荐(0) 编辑
摘要: Jaccard similarity coefficient(杰卡德相似系数): 两个集合A和B的交集元素在A,B的并集中所占的比例,称为两个集合的杰卡德相似系数 Correlation coefficient(相关系数): 准确率、召回、Fscore: Hinge Loss: $L(y(wx + 阅读全文
posted @ 2017-04-01 11:55 合唱团abc 阅读(1022) 评论(0) 推荐(0) 编辑