The Role of Knowledge-based Features in Polarity Classification at Sentence Level

@inproceedings{Wiegand2009TheRO,
  title={The Role of Knowledge-based Features in Polarity Classification at Sentence Level},
  author={Michael Wiegand and Dietrich Klakow},
  booktitle={FLAIRS Conference},
  year={2009}
}
Though polarity classification has been extensively explor ed at document level, there has been little work investigating feature design at sentence level. Due to the small number of words within a sentence, polarity classification at sentenc e level differs substantially from document-level classific ation in that resulting bag-of-words feature vectors tend to be ve ry sparse resulting in a lower classification accuracy. In this paper, we show that performance can be improved by adding… CONTINUE READING

Similar Papers

Loading similar papers…