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我有这段代码。我有两个功能。我如何一起训练这两个功能?培训两个功能而不是一个
from textblob import TextBlob, Word, Blobber
from textblob.classifiers import NaiveBayesClassifier
from textblob.taggers import NLTKTagger
import re
import nltk
def get_word_before_you_feature(mystring):
keyword = 'you'
before_keyword, keyword, after_keyword = mystring.partition(keyword)
before_keyword = before_keyword.rsplit(None, 1)[-1]
return {'word_after_you': before_keyword}
def get_word_after_you_feature(mystring):
keyword = 'you'
before_keyword, keyword, after_keyword = mystring.partition(keyword)
after_keyword = after_keyword.split(None, 1)[0]
return {'word_after_you': after_keyword}
classifier = nltk.NaiveBayesClassifier.train(train)
lang_detector = NaiveBayesClassifier(train, feature_extractor=get_word_after_you_feature)
lang_detector = NaiveBayesClassifier(train, feature_extractor=get_word_before_you_feature)
print(lang_detector.accuracy(test))
print(lang_detector.show_informative_features(5))
这是我得到的输出。
word_before_you = '做' 参考,:generi = 2.2:1.0
word_before_you = '当' generi:参考,= 1.1:1.0
似乎只得到了最后一个特性。如何让分类器训练两个特征而不是一个特征。
感谢您的意见。它现在有效! – user3078335 2014-10-04 20:55:27