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Correlation Between Model-based Approximations of Grounding-related Cognition and User Judgments
Citation key engelbrecht2012b
Author Engelbrecht, Klaus-Peter and Möller, Sebastian
Title of Book Proceedings of Interspeech 2012
Pages 246–249
Year 2012
ISSN 1990-9772
Location Portland, OR, USA
Month sep
Publisher ISCA
Abstract As spoken dialog systems become more complex, efficient ways to evaluate them in early development stages are required. User simulation has been successfully used for this purpose. While current user models describe behavior on the level of overt behavior, modeling aspects of cognition can reveal direct insights into usability problems. Thus, in this paper we propose two models related to grounding in dialog: a model of the belief the user has about the system state, and a model of vocabulary alignment. We show that parameters derived from these models are significantly correlated with the users' quality perception.
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