朴素和半朴素贝叶斯

时间 2020-12-30

原文原文链接

引入贝叶斯决策论是概率框架下实施决策的基本方法，它基于概率和误判误差的最小化来进行判别，是一种分类问题的解法。原理首先，将数据及其属性记为x，对于多分类任务，其可能的取值有N种，设为{ c1,c2,c3.....cN c 1 , c 2 , c 3 . . . . . c N }，统称为c。数据x的正确分类记为 cx c x 。于是将算法的正确率记为： Ptrue=∑P(cx|x)=P(

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1. 朴素贝叶斯
2. 朴素贝叶斯为何朴素？
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