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ML-Emsembling

  • 相关链接

1.集成算法总结:https://www.cnblogs.com/sddai/p/7647731.html 这个链接主要讲集成算法的两个大类:Boosting和Bagging的基本原理。
2.有放回抽样详解:https://blog.csdn.net/chenyukuai6625/article/details/73692347 这个链接讲了bagging的有放回采样的原理,并且有一个小例子,通过这个例子我明白了随机森林中“随机”二字的含义。
3.决策树原理讲解:https://blog.csdn.net/akadiao/article/details/77800909 这个链接讲解了如何利用csv的工具包对数据进行离散化赋值的用法(注意:这里没有使用pandas工具包)
4.决策树DecisionTreeClassifier的具体参数讲解:https://blog.csdn.net/y0929/article/details/82686177 这个链接讲解了决策树的默认参数。实验证明:当决策树不设置最深层数时,predict_proba()的结果一般是[ 0,1 ]或者 1 , 0 。放决策树设置最深层数时,predict_proba()的结果是 0.38,0.62 ,这是我做实验时的观察。
5.关于sklearn的predict和predict_proba的区别:https://blog.csdn.net/m0_37870649/article/details/79549142

  • 关于程序

main.ipynb介绍了集成算法如何将若干个基本分类器进行集合的,将每种分类器的结果进行平均,之后我们发现AUC的值得到了提高,说明集成算法能提高分类器的分类性能。

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