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Analysis of Temporal Features for Interaction Quality Estimation

  • Stefan Ultes
  • Alexander Schmitt
  • Wolfgang Minker
Chapter
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 427)

Abstract

Many different approaches for Interaction Quality (IQ) estimating of Spoken Dialogue Systems have been investigated. While dialogues clearly have a sequential nature, statistical classification approaches designed for sequential problems do not seem to work better on automatic IQ estimation than static approaches, i.e., regarding each turn as being independent of the corresponding dialogue. Hence, we analyse this effect by investigating the subset of temporal features used as input for statistical classification of IQ. We extend the set of temporal features to contain the system and the user view. We determine the contribution of each feature sub-group showing that temporal features contribute most to the classification performance. Furthermore, for the feature sub-group modeling the temporal effects with a window, we modify the window size increasing the overall performance significantly by \(+\)15.69 % achieving an Unweighted Average Recall of 0.562.

Keywords

Spoken dialogue system evaluation User satisfaction Support vector machine classification 

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Copyright information

© Springer Science+Business Media Singapore 2017

Authors and Affiliations

  • Stefan Ultes
    • 1
  • Alexander Schmitt
    • 2
  • Wolfgang Minker
    • 2
  1. 1.Engineering DepartmentUniversity of CambridgeCambridgeUK
  2. 2.Institute of Communications EngineerigUlm UniversityUlmGermany

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