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|1. (WO2017200076) DIALOG METHOD, DIALOG SYSTEM, DIALOG DEVICE, AND PROGRAM|
|Applicants:||NIPPON TELEGRAPH AND TELEPHONE CORPORATION
|Title:||DIALOG METHOD, DIALOG SYSTEM, DIALOG DEVICE, AND PROGRAM|
The present invention improves a sense of response, and enables a dialog to continue for a long time. A dialog system 10 includes at least an input unit 1 for receiving user speech, and a presentation unit 5 for presenting speech. A presentation unit 5-1 and a presentation unit 5-2 present open-ended speech. The input unit 1 receives user speech corresponding to open-ended speech. The presentation unit 5-1 presents speech determined on the basis of the user speech by a chat dialog system 6, which determines speech on the basis of at least user speech content. The presentation unit 5-2 presents speech determined by a scenario dialog system 7, which determines speech on the basis of scenarios that have been stored in advance, after the speech determined by the chat dialog system 6.