波特干扰器

导入 PorterStemmer 并初始化

 from nltk.stem import PorterStemmer
 from nltk.tokenize import word_tokenize
 ps = PorterStemmer()

干一个单词列表

 example_words = ["python","pythoner","pythoning","pythoned","pythonly"]

 for w in example_words:
     print(ps.stem(w))

结果：

 python
 python
 python
 python
 pythonli

在对其进行标记后判断一个句子。

 new_text = "It is important to by very pythonly while you are pythoning with python. All pythoners have pythoned poorly at least once."

 word_tokens = word_tokenize(new_text)
 for w in word_tokens:
     print(ps.stem(w))   # Passing word tokens into stem method of Porter Stemmer

结果：

 It
 is
 import
 to
 by
 veri
 pythonli
 while
 you
 are
 python
 with
 python
 .
 all
 python
 have
 python
 poorli
 at
 least
 onc
 .