Conference paper
Valence, arousal and dominance estimation for English, German, Greek,Portuguese and Spanish lexica using semantic models
INTERSPEECH 2015 (Dresden, Germany, 06/09/2015–10/09/2015)
2015
Abstract
We propose and evaluate the use of an affective-semantic model to expand the affective lexica of German, Greek, English, Spanish and Portuguese. Motivated by the assumption that semantic similarity implies affective similarity, we use word level semantic similarity scores as semantic features to estimate their corresponding affective scores. Various context-based semantic similarity metrics are investigated using contextual features that include both words and character n-grams. The model produces continuous affective ratings in three dimensions (valence, arousal and dominance) for all five languages, achieving consistent performance. We achieve classification accuracy (valence polarity task) between 85% and 91% for all five languages. For morphologically rich languages the proposed use of character n-grams is shown to improve performance.
Details
- Title
- Valence, arousal and dominance estimation for English, German, Greek,Portuguese and Spanish lexica using semantic models
- Authors/Creators
- E. Palogiannidi (Author/Creator)E. Losif (Author/Creator)P. Koutsakis (Author/Creator)A. Potamianos (Author/Creator)
- Conference
- INTERSPEECH 2015 (Dresden, Germany, 06/09/2015–10/09/2015)
- Identifiers
- 991005541369307891
- Copyright
- © 2015 ISCA
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Conference paper
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