飘逸项链

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3年0月20天

NLP(三):文本表示的特征选取(TF-IDF,互信息)1.TF-IDF概述2.TF-IDF的sklearn实现3.(点)互信息原理4.互信息的sklearn实现

目录1.TF-IDF概述*首先我们先回顾一下学习计划()二)中提到的文本向量化表示:https://blog.csdn.net/weixin_42483560/article/details/892186982.TF-IDF的sklearn实现方法一:方法二:3.(点)互信息原理3.1点互信息3.2互信息4.互信息的sklearn实现1.TF-IDF概述...

CF 683 DIV.3 C. Sequence Transformation

题目:You are given a sequence a, initially consisting of n integers.You want to transform this sequence so that all elements in it are equal (i. e. it contains several occurrences of the same element).To achieve this, you choose some integer x that occ