| 摘要 |
PROBLEM TO BE SOLVED: To provide an interaction device and method that easily and correctly corrects a wrong interpretation of a past user input with a subsequent user input. SOLUTION: The interaction device includes: a storage means of storing a history of interaction states; a response output means of outputting a system response in a current interaction state; a speech recognition means of recognizing an input user utterance as a speech and finding one or more recognition candidates for the user utterance and likelihoods thereof; a calculation means of calculating degrees of adaptation to the user utterance as to a plurality of interaction states including the current interaction state and last interaction state stored in a storage means; a selection means of selecting one of the plurality of interaction states and one of the one or more recognition candidates, based upon combinations of the degrees of adaptation of the respective interaction states and the likelihoods of the respective recognition candidates; and a transition means of transitioning the current interaction state to a new interaction state based upon the selected interaction state and recognition candidate. COPYRIGHT: (C)2008,JPO&INPIT
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