| 摘要 |
PROBLEM TO BE SOLVED: To provide an easy-to-use voice interactive device with which the user would not feel troublesome. SOLUTION: A interactive control part 12 makes a dictionary control part 14 create a voice recognition dictionary, including possible phrases, such as "I do not understand" which a user may utter, when the user cannot find a reply to a question, and a voice recognition part 11 performs voice recognition, according to this voice recognition dictionary and outputs a result to the interactive control part 12. The interactive control part 12 decides it by an unknown expression word deciding part 18 whether the result of the voice recognition is, in agreement with an unknown expression word registered in an unknown expression word dictionary 17; and if the result is in agreement, a counter for counting the frequency in which the unknown expression word corresponding to the question was replied, is made to count up another count, and when a counter value exceeds pre-set value, the question is deleted from a scenario so as not to be made from the next time thereafter. COPYRIGHT: (C)2006,JPO&NCIPI
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