一. 知识点 Bias-Variance Tradeoff bias-variance是分析boosting和bagging的一个重要角度,首先讲解下Bias-Variance Tradeoff. 假设training/test数据集服从相似的分布,即 yi=f(xi)+ϵi, y i = f ( x i ) + ϵ i , y_i = f(x_i) + \epsilo
http://noi.openjudge.cn/ch0304/2406/ 描述 Bessie is playing a card game with her N-1 (2 <= N <= 100) cow friends using a deck with K (N <= K <= 100,000; K is a multiple of N) cards. The deck contains