Abstract: The disclosure provides an interactive system that is easy to manage. The interactive system includes an expert for each topic and an expert selector that selects the expert according to a content of an utterance of a user. The expert includes multiple components. One of the components determines whether information required for a goal of an interaction is complete; and in response to that there is missing information, generates a task for obtaining the missing information, adds a component associated with the task, and executes the task by the component added; and in response to that the information required is complete, outputs a reply to the utterance of the user.

Abstract: A first domain satisfying a first condition concerning a current utterance understanding result and a second domain satisfying a second condition concerning a selection history are specified. For each of the first and second domains, indices representing reliability in consideration of the utterance understanding history, selection history, and utterance generation history are evaluated. Based on the evaluation results, one of the first, second, and third domains is selected as a current domain according to a selection rule.

Abstract: The present invention provides a chat information system having a voice recognition device for recognizing voices, a voice synthesizer, a humanoid robot, a microphone for receiving the voices and a speaker for pronouncing synthesized voices. The system comprises a headline sensor capturing news from the Internet, a news database for storing the captured news, and a conversation database including at least a general conversation database storing a set of inquiries and responses. The system also includes a chat engine configured to extract one or more keywords from a user's speech that has been recognized by the voice recognition device, to search at least one of the news database and the conversation database with the extracted keywords and to output via the speaker the contents that have been hit by the search.

Abstract: A first domain satisfying a first condition concerning a current utterance understanding result and a second domain satisfying a second condition concerning a selection history are specified. For each of the first and second domains, indices representing reliability in consideration of the utterance understanding history, selection history, and utterance generation history are evaluated. Based on the evaluation results, one of the first, second, and third domains is selected as a current domain according to a selection rule.

Abstract: The present invention provides a chat information system having a voice recognition device for recognizing voices, a voice synthesizer, a humanoid robot, a microphone for receiving the voices and a speaker for pronouncing synthesized voices. The system comprises a headline sensor capturing news from the Internet, a news database for storing the captured news, and a conversation database including at least a general conversation database storing a set of inquiries and responses. The system also includes a chat engine configured to extract one or more keywords from a user's speech that has been recognized by the voice recognition device, to search at least one of the news database and the conversation database with the extracted keywords and to output via the speaker the contents that have been hit by the search.