| Yelp Sentiment Classification | |
| https://github.com/weakrules/Denoise-multi-weak-sources/tree/master/rules-noisy-labels/Yelp | |
| # Labels | |
| "0": "Negative", | |
| "1": "Positive" | |
| # Labeling functions | |
| lfs = [ | |
| textblob_lf, | |
| keyword_recommend, | |
| keyword_general, | |
| keyword_mood, | |
| keyword_service, | |
| keyword_price, | |
| keyword_environment, | |
| keyword_food, | |
| ] | |
| # lf - textblob_lf | |
| @preprocessor(memoize=True) | |
| def textblob_sentiment(x): | |
| scores = TextBlob(x.text) | |
| x.polarity = scores.sentiment.polarity | |
| x.subjectivity = scores.sentiment.subjectivity | |
| return x | |
| @labeling_function(pre=[textblob_sentiment]) | |
| def textblob_lf(x): | |
| if x.polarity < -0.5: | |
| return NEG | |
| if x.polarity > 0.5: | |
| return POS | |
| return ABSTAIN | |
| # lf - keyword_recommend | |
| keyword_recommend = make_keyword_lf(name="keyword_recommend", | |
| keywords_pos=["recommend"], | |
| keywords_neg=[]) | |
| # lf - keyword_general | |
| keyword_general = make_keyword_lf(name="keyword_general", | |
| keywords_pos=["outstanding", "perfect", "great", "good", "nice", "best", "excellent", "worthy", "awesome", "enjoy", "positive", "pleasant", "wonderful", "amazing"], | |
| keywords_neg=["bad", "worst", "horrible", "awful", "terrible", "nasty", "shit", "distasteful", "dreadful", "negative"]) | |
| # lf - keyword_mood | |
| keyword_mood = make_keyword_lf(name="keyword_mood", | |
| keywords_pos=["happy", "pleased", "delighted", "contented", "glad", "thankful", "satisfied"], | |
| keywords_neg=["sad", "annoy", "disappointed", "frustrated", "upset", "irritated", "harassed", "angry", "pissed"]) | |
| # lf - keyword_service | |
| keyword_service = make_keyword_lf(name="keyword_service", | |
| keywords_pos=["friendly", "patient", "considerate", "enthusiastic", "attentive", "thoughtful", "kind", "caring", "helpful", "polite", "efficient", "prompt"], | |
| keywords_neg=["slow", "offended", "rude", "indifferent", "arrogant"]) | |
| # lf - keyword_price | |
| keyword_price = make_keyword_lf(name="keyword_price", | |
| keywords_pos=["cheap", "reasonable", "inexpensive", "economical"], | |
| keywords_neg=["overpriced", "expensive", "costly", "high-priced"]) | |
| # lf - keyword_environment | |
| keyword_environment = make_keyword_lf(name="keyword_environment", | |
| keywords_pos=["clean", "neat", "quiet", "comfortable", "convenien", "tidy", "orderly", "cosy", "homely"], | |
| keywords_neg=["noisy", "mess", "chaos", "dirty", "foul"]) | |
| # lf - keyword_food | |
| keyword_food = make_keyword_lf(name="keyword_food", | |
| keywords_pos=["tasty", "yummy", "delicious", "appetizing", "good-tasting", "delectable", "savoury", "luscious", "palatable"], | |
| keywords_neg=["disgusting", "gross", "insipid"]) | |