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

Claim 3:
4. The spoken dialogue system according to claim 2, wherein the circuitry is further configured to:
acquire a user speech feature series obtained by dividing the user speech into user speech elements of a time with a predetermined length and chronologically disposing acoustic features of the user speech elements based on the user speech; and
acquire a system speech feature series in which acoustic features of the system speech elements obtained by dividing the immediately previous system speech into times with a predetermined length are chronologically disposed, the system speech feature series including identification information attached to a system speech element included in a morpheme which, among morphemes included in the immediately previous system speech, corresponds to a predetermined part of speech and does not correspond to a response candidate acquired from the dialogue scenario and assumed to be the immediately previous system speech by the user among the plurality of system speech elements,
wherein the circuitry determines whether to engage each user speech element using a barge-in speech determination model that receives the user speech feature series, the system speech feature series, and the identification information as inputs, and outputs a likelihood of each user speech element not being engaged in dialogue control, each user speech element being included in the user speech.