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https://alex-mcavoy.github.io/artificial-intelligence/nlp/93aca240.html
【概述】词频-逆文档频率(Term Frequency-Inverse Document Frequency,TF-IDF)是一种用于信息检索与数据挖掘的常用加权技术,常用于衡量单词在文档中重要性,其结合了单词在文档中的频率和在整个文集中的普遍程度 TF-IDF 的主要思想是:如果某个单词在一个文档中出现的频率高,并且在其他文档中很少出现,则认为此词或者短语具有很好的类别区分能力
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https://alex-mcavoy.github.io/artificial-intelligence/nlp/93aca240.html
【概述】词频-逆文档频率(Term Frequency-Inverse Document Frequency,TF-IDF)是一种用于信息检索与数据挖掘的常用加权技术,常用于衡量单词在文档中重要性,其结合了单词在文档中的频率和在整个文集中的普遍程度 TF-IDF 的主要思想是:如果某个单词在一个文档中出现的频率高,并且在其他文档中很少出现,则认为此词或者短语具有很好的类别区分能力
The text was updated successfully, but these errors were encountered: