NLTK是否已实施TF-IDF? [英] Does NLTK have TF-IDF implemented?

问题描述

在scikit-learn和gensim中有TF-IDF实现.

There are TF-IDF implementations in scikit-learn and gensim.

有一些简单的实现为避免重新发明轮子，

• NLTK中确实没有TF-IDF吗?
• 是否存在可用于在NLTK中实现TF-IDF的子包?如果有的话?

• Is there really no TF-IDF in NLTK?
• Are there sub-packages that we can manipulate to implement TF-IDF in NLTK? If there are how?

在此博客中，NLTK没有它. 是真的吗? http://www.bogotobogo .com/python/NLTK/tf_idf_with_scikit-learn_NLTK.php

In this blogpost, it says NLTK doesn't have it. Is that true? http://www.bogotobogo.com/python/NLTK/tf_idf_with_scikit-learn_NLTK.php

推荐答案

NLTK TextCollection类具有一种用于计算术语tf-idf的方法.该文档位于此处，来源是

The NLTK TextCollection class has a method for computing the tf-idf of terms. The documentation is here, and the source is here. However, it says "may be slow to load", so using scikit-learn may be preferable.

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