| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient speech recognition device which starts with a dictionary of a small capacity at the beginning and dynamically adds contents for learning to the dictionary according to a use environment, because conventionally, when operating speech recognition equipment on a means of transportation such as a vehicle, there has been only a choice between the two alternatives to limit a task to make recognition accuracy high or to ease a task limit to use memory in large quantities. SOLUTION: The speech recognition device is so configured that it recognizes an input speech signal by using a network language dictionary; an extracting means extracts the other vocabularies having much frequency information on connection or appearance concerning a vocabulary as a result of the recognition; and an adding means adds the above other vocabularies together with the frequency information on the connection and appearance to the network language dictionary. COPYRIGHT: (C)2005,JPO&NCIPI
|
