This paper describes the component in the SUNDIAL spoken dialogue system responsible for semantic interpretation of user input. This component, thèbelief mod-ule', constructs interpretations using several sources of knowledge, including static knowledge deenitions and a dynamic model of dialogue context, and addresses the problem of the hypothetical nature of the recognition and parsing results...

This paper presents an approach to managing spoken dialogues in information services systems. We describe how the approach, based upon a tri{partite model of interaction , addresses the problems of co{operativeness and portability across languages and task domains. This approach has been implemented in the generic dialogue manager of the Sundial dialogue systems. We outline the capabilities of ...

This paper describes the language output component of the Sundial spoken dialogue system. Following a dialogue planning decision to produce an utterance, an utterance planning component derives a semantic description drawing on a model of speakers' knowledge of the domain. This semantic description is linguistically real-ised by a generation component which draws on a bi-directional lexicon-gra...

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