Positive, Negative, or Neutral: Learning an Expanded Opinion Lexicon from Emoticon-Annotated Tweets

@inproceedings{BravoMarquez2015PositiveNO,
  title={Positive, Negative, or Neutral: Learning an Expanded Opinion Lexicon from Emoticon-Annotated Tweets},
  author={Felipe Bravo-Marquez and Eibe Frank and Bernhard Pfahringer},
  booktitle={IJCAI},
  year={2015}
}
We present a supervised framework for expanding an opinion lexicon for tweets. The lexicon contains part-of-speech (POS) disambiguated entries with a three-dimensional probability distribution for positive, negative, and neutral polarities. To obtain this distribution using machine learning, we propose word-level attributes based on POS tags and information calculated from streams of emoticonannotated tweets. Our experimental results show that our method outperforms the three-dimensional word… CONTINUE READING
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