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Topic based quality indexes assessment through sentiment

Author

Listed:
  • Marco Ortu

    (University of Cagliari)

  • Luca Frigau

    (University of Cagliari)

  • Giulia Contu

    (University of Cagliari)

Abstract

This paper proposes a new methodology called TOpic modeling Based Index Assessment through Sentiment (TOBIAS). This method aims at modeling the effects of the topics, moods, and sentiments of the comments describing a phenomenon upon its overall rating. TOBIAS is built combining different techniques and methodologies. Firstly, Sentiment Analysis identifies sentiments, emotions, and moods, and Topic Modeling finds the main relevant topics inside comments. Then, Partial Least Square Path Modeling estimates how they affect an overall rating that summarizes the performance of the analyzed phenomenon. We carried out TOBIAS on a real case study on the university courses’ quality evaluated by the University of Cagliari (Italy) students. We found TOBIAS able to provide interpretable results on the impact of discussed topics by students with their expressed sentiments, emotions, and moods and with the overall rating.

Suggested Citation

  • Marco Ortu & Luca Frigau & Giulia Contu, 2024. "Topic based quality indexes assessment through sentiment," Computational Statistics, Springer, vol. 39(1), pages 289-311, February.
    • Handle: RePEc:spr:compst:v:39:y:2024:i:1:d:10.1007_s00180-022-01284-7
    DOI: 10.1007/s00180-022-01284-7
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