SVM.py 文件源码

def tokenize(text):
      # text = NB.remove_punctuation(text)
      try:
        text = text.decode('utf-8').encode('ascii', 'replace').strip().lower()
      except:
        text = text.encode('ascii', 'replace').strip().lower()
      word = [porter.stem(w) for w in re.findall(r"[\w'-]+|[^\s\w]", text)]   # split punctuations but dont split single quotes for words like don't
      biword =  [b for b in nltk.bigrams(word)]
      triword =  [t for t in nltk.trigrams(word)]
      # word = [w for w in word if w not in stopwords.words('english')]
      return  word # triword