Hierarchical versus flat classification of emotions in text

  • Authors:
  • Diman Ghazi;Diana Inkpen;Stan Szpakowicz

  • Affiliations:
  • University of Ottawa;University of Ottawa;University of Ottawa and Institute of Computer Science, Polish Academy of Sciences

  • Venue:
  • CAAGET '10 Proceedings of the NAACL HLT 2010 Workshop on Computational Approaches to Analysis and Generation of Emotion in Text
  • Year:
  • 2010

Quantified Score

Hi-index 0.00

Visualization

Abstract

We explore the task of automatic classification of texts by the emotions expressed. Our novel method arranges neutrality, polarity and emotions hierarchically. We test the method on two datasets and show that it outperforms the corresponding "flat" approach, which does not take into account the hierarchical information. The highly imbalanced structure of most of the datasets in this area, particularly the two datasets with which we worked, has a dramatic effect on the performance of classification. The hierarchical approach helps alleviate the effect.