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A Closer Look at Quality Judgments of Spoken Dialog Systems
Citation key engelbrecht2009b
Author Engelbrecht, Klaus-Peter and Hartard, Felix and Gödde, Florian and Möller, Sebastian
Title of Book Proceedings of the 10th Annual Conference of the ISCA (Interspeech 2009)
Pages 2787–2790
Year 2009
ISSN 1990-9772
Location Brighton, United Kingdom
Month sep
Publisher ISCA
Abstract User judgments of Spoken Dialog Systems provide evaluators of such systems with a valid measure of their overall quality. Models for the automatic prediction of user judgments have been built, following the introduction of PARADISE [1]. Main applications are the comparison of systems, the analysis of parameters affecting quality, and the adoption of dialog management strategies. However, a common model which applies to different systems and users has not been found so far. With the aim of getting a closer insight into the quality-relevant characteristics of spoken interactions, an experiment was conducted where 25 users judged the same 5 dialogs. User judgments were collected after each dialog turn. The paper presents an analysis of the obtained results and some conclusions for future work.
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