Patent ID: 11862167
Assignee: NTT DOCOMO, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A spoken dialogue system that performs a dialogue with a user by outputting system speech formed by a voice, the spoken dialogue system comprising circuitry configured to:
acquire user speech formed by a voice produced by the user;
output a recognition result obtained by recognizing the user speech acquired by the circuitry as text information;
determine whether to engage barge-in speech which is the user speech produced to cut off ongoing output of the system speech;
output a system response representing response content with which to respond to the user based on the recognition result corresponding to the user speech other than the barge-in speech determined not to be engaged by the circuitry with reference to a dialogue scenario that has a mutual response rule between the user speech and the system speech;
generate the system speech based on the system response output by the circuitry; and
output the system speech,
wherein the user speech is formed by one or more chronological user speech elements,
wherein the dialogue scenario includes a response candidate which is a response assumed for the system speech from the user, and
wherein, when each user speech element corresponds to a predetermined morpheme included in immediately previous system speech which is the system speech output by the circuitry immediately before the user speech is produced by the user and does not correspond to an element of the response candidate to the immediately previous system speech in the dialogue scenario, the circuitry determines not to engage the user speech element or the user speech including the user speech element.