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Erschienen in:
2006 | OriginalPaper | Buchkapitel
Dealing with Out of Domain Questions in Virtual Characters
verfasst von : Ronakkumar Patel, Anton Leuski, David Traum
Erschienen in: Intelligent Virtual Agents
Verlag: Springer Berlin Heidelberg
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We consider the problem of designing virtual characters that support speech-based interactions in a limited domain. Previously we have shown that classification can be an effective and robust tool for selecting appropriate in-domain responses. In this paper, we consider the problem of dealing with out-of-domain user questions. We introduce a taxonomy of out-of-domain response types. We consider three classification architectures for selecting the most appropriate out-of-domain responses. We evaluate these architectures and show that they significantly improve the quality of the response selection making the user’s interaction with the virtual character more natural and engaging.