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文本特征词选择-卡方检验

于 2022-10-11 发布 文件大小:1.18 kB
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代码说明:

此代码是采用卡方检验的方法来对特征词进行选择,是一子函数,直接输入参数就可以调用运行。并且对每个词的卡方值进行从大到小排序,通过设置参数可以直接选择特征词的个数

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