Nippon Telegraph and Telephone Corporation

Osaka University

Toyomi Meguro

Hiroshi Ishiguro

Hiroaki Sugiyama

Yuichiro Yoshikawa

Junji Yamato

Tsunehiro Arimoto

Takamasa Iio

The present invention keeps a dialogue continuing for a long time without causing uncomfortable feeling to a user. A dialogue systemincludes at least an input partthat receives a user utterance, which is an utterance from a user and a presentation partthat presents the utterance. The input partreceives a user utterance performed by the user. A presentation part-presents a dialogue-establishing utterance which does not include any content words. A presentation part-presents a second utterance associated with a generation target utterance, which is one or more utterances performed before user utterance that includes at least the user utterance, after the dialogue-establishing utterance.

Dialogue establishing utterances without content words

The present invention improves a sense of participation in a topic and enables a dialogue to continue for a long time. A dialogue systemincludes at least an input partthat receives a user's utterance and a presentation partthat presents an utterance. In an utterance receiving step, the input partreceives an utterance performed by the user. In a first presentation step, the presentation partpresents an utterance determined based on scenarios stored in advance. In a second presentation step, the presentation partpresents the utterance determined based on the user's utterance contents. A dialogue control partperforms control to execute a dialogue at least including a first dialogue flow which is a dialogue including the utterance receiving step and the first presentation step at least one time respectively based on a predetermined scenario, and a second dialogue flow which is a dialogue including the utterance receiving step and the second presentation step at least one time respectively.

Dialogue method, dialogue system, dialogue apparatus and program

The present invention provides a dialog system comprising a speech receiving step in which the dialog system receives input of a speech of a human, a first speech determination step in which the dialog system determines a first speech which is a speech in response to the speech of the human, a first speech presentation step in which the first speech is presented by a first agent, a reaction acquisition step in which the dialog system acquires a reaction of the human to the first speech, a second speech determination step in which the dialog system determines, when the reaction of the human is a reaction indicating that the first speech is not a speech in response to the speech of the human, a second speech which is different from the first speech, and a second speech presentation step in which the second speech is presented by the second agent.

Dialog method, dialog system, dialog apparatus and program that gives impression that dialog system understands content of dialog

An acquisition method is a method performed by an acquisition system in order to acquire a speech set in which three speeches are associated with one another used to generate a second speech made by a dialog system, based on a speech set in which three speeches are associated with one another, in response to a speech made by a human in response to a first speech made by the dialog system. A storage part of the acquisition system stores a plurality of speech sets in which two speeches are associated with each other and the acquisition method includes a presentation step of presenting in order, a speech t() and a speech t() which are two consecutive speeches included in a certain speech set stored in the storage part of the acquisition system, a speech receiving step of receiving input of a third speech t() which is a human speech after presenting the speech t() and a storing step of storing the speech t(), the speech t(), and the speech t() associated with one another as a speech set in which three speeches are associated with one another in the storage part of the acquisition system.

Acquisition method, generation method, system therefor and program for enabling a dialog between a computer and a human using natural language

A dialog method carried out by a dialog system includes an agent that performs a dialog with a user. The dialog method carried out by the dialog system includes a speech receiving step in which the dialog system receives input of a user speech which is a speech of the user, a first presentation step in which when the dialog system cannot obtain any recognition result of a desired level corresponding to the user speech, the dialog system presents a speech which does not include any content words as a first agent speech which is a speech of the agent uttered immediately after the user speech and a second speech step in which the dialog system presents a speech generated or selected not based on the user speech as a second agent speech which is a speech of an agent uttered after uttering the first agent speech.

Growing community of inventors

Soraku-gun, Japan

Toyomi Meguro