Spoken dialogue system, program and voice interaction methods for spoken dialogue

摘要

PROBLEM TO BE SOLVED: To provide a speech interaction system capable of selecingt an answering method suitable to a user's environment, informing the user of the cause of a failure in speech recognition in such a case, providing a countermeasure means corresponding thereto to a user terminal, and efficiently performing speech recognition while taking user's features and past states into consideration.;SOLUTION: The speech interaction system (100) allows a connection from a terminal and is equipped with a speech recognizing means (110) of performing speech recognition for a speech signal from the terminal, a countermeasure method determining means (112) of deciding the cause that the result of the speech recognition can not be obtained in such a case and determining a countermeasure method for the decided cause, an estimating means (120) of estimating the acoustic environment of the terminal, an answering method determining means (122) of determining an answering method for the terminal according to the estimated acoustic environment, and a transmitting means (126) of sending information representing the determined countermeasure method to the terminal by the determined answering method.;COPYRIGHT: (C)2004,JPO