Honda Motor Co., Ltd.

Yohane Takeuchi

Hiroshi Tsujino

Hiroshi Okuno

Mikio Nakano

Kazunori Komatani

Atsushi Hoshino

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.

Conversation system and conversation software

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.

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Wako, Japan

Yohane Takeuchi