CUED Publications database

Analysis of temporal features for interaction quality estimation

Ultes, S and Schmitt, A and Minker, W (2017) Analysis of temporal features for interaction quality estimation. Lecture Notes in Electrical Engineering, 999 LN. pp. 367-379. ISSN 1876-1100

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Abstract

© Springer Science+Business Media Singapore 2017. 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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Machine Intelligence
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:16
Last Modified: 10 Aug 2017 01:37
DOI: