Abstract: It is an object of the present invention to prevent inattentive listening to a dialogue of an agent without taking it seriously and to make it easier to understand the dialogue with the agent. A dialogue system 100 conducts a dialogue with a user 101. A humanoid robot 50-1 presents a leap-in-logic utterance, which is an utterance, of which a logical structure is partially missing. The user 101 expresses a confirmation action which is an action confirming the missing information in the leap-in-logic utterance. The humanoid robot 50-1 presents a supplementary utterance which is an utterance describing the missing information.

Abstract: The present invention keeps a dialogue continuing for a long time without causing uncomfortable feeling to a user. A dialogue system 10 includes at least an input part 1 that receives a user utterance, which is an utterance from a user and a presentation part 5 that presents the utterance. The input part 1 receives a user utterance performed by the user. A presentation part 5-1 presents a dialogue-establishing utterance which does not include any content words. A presentation part 5-2 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.

Abstract: It is an object of the present invention to induce a dialogue to a topic that a dialogue system tries to present. A dialogue system 100 presents a first utterance which is a certain utterance and a target utterance related to the first utterance to a user 101. A humanoid robot 50-1 presents the first utterance. A microphone 11-1 receives a user utterance of the user 101 after the first utterance. A humanoid robot 50-2 presents at least one topic-inducing utterance for inducing the topic to the target utterance based on a recognition result of the user utterance and an utterance sentence of the target utterance after the user utterance. The humanoid robot 50-1 presents the target utterance after the topic-inducing utterance.

Abstract: It is an object of the present invention to provide a dialog technique that can reduce a user's uncomfortable feeling. A dialog system 100 is a dialog system that conducts a dialog with the user, the dialog system including a presentation part 50 that presents an action to fill a gap between a user utterance and a response utterance of the dialog system, after it is estimated or determined that the user utterance has ended or after a predicted time at which the user utterance ends, and before the dialog system makes a response utterance to the user utterance.

Abstract: It is an object of the present invention to prevent inattentive listening to a dialogue of an agent without taking it seriously and to make it easier to understand the dialogue with the agent. A dialogue system 100 conducts a dialogue with a user 101. A humanoid robot 50-1 presents a leap-in-logic utterance, which is an utterance, of which a logical structure is partially missing. The user 101 expresses a confirmation action which is an action confirming the missing information in the leap-in-logic utterance. The humanoid robot 50-1 presents a supplementary utterance which is an utterance describing the missing information.

Abstract: It is an object of the present invention to provide a dialog technique that can reduce a user's uncomfortable feeling. A dialog system 100 is a dialog system that conducts a dialog with the user, the dialog system including a presentation part 50 that presents an action to fill a gap between a user utterance and a response utterance of the dialog system, after it is estimated or determined that the user utterance has ended or after a predicted time at which the user utterance ends, and before the dialog system makes a response utterance to the user utterance.

Abstract: It is an object of the present invention to induce a dialogue to a topic that a dialogue system tries to present. A dialogue system 100 presents a first utterance which is a certain utterance and a target utterance related to the first utterance to a user 101. A humanoid robot 50-1 presents the first utterance. A microphone 11-1 receives a user utterance of the user 101 after the first utterance. A humanoid robot 50-2 presents at least one topic-inducing utterance for inducing the topic to the target utterance based on a recognition result of the user utterance and an utterance sentence of the target utterance after the user utterance. The humanoid robot 50-1 presents the target utterance after the topic-inducing utterance.

Abstract: The present invention keeps a dialogue continuing for a long time without causing uncomfortable feeling to a user. A dialogue system 10 includes at least an input part 1 that receives a user utterance, which is an utterance from a user and a presentation part 5 that presents the utterance. The input part 1 receives a user utterance performed by the user. A presentation part 5-1 presents a dialogue-establishing utterance which does not include any content words. A presentation part 5-2 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.

Abstract: A robot control system detects a position and a direction of each user by a plurality of range image sensors provided in an exhibition hall. A central controller records an inspection action after a user attends the exhibition hall until the user leaves to generate an inspection action table. When the user attends again, the central controller reads a history of inspection action from the inspection action table. Then, the central controller chooses from an utterance content table an utterance content containing a phrase that mentions the inspection action included in the history at a time of last time attendance, determines the utterance content, and makes a robot output the determined utterance content to the user.

Abstract: A robot control system detects a position and a direction of each user by a plurality of range image sensors provided in an exhibition hall. A central controller records an inspection action after a user attends the exhibition hall until the user leaves to generate an inspection action table. When the user attends again, the central controller reads a history of inspection action from the inspection action table. Then, the central controller chooses from an utterance content table an utterance content containing a phrase that mentions the inspection action included in the history at a time of last time attendance, determines the utterance content, and makes a robot output the determined utterance content to the user.