| 摘要 |
An apparatus for recognizing a word based on voice information, includes, a keyword model storing device, a non-keyword model storing device, a model updating device and a recognition device. The keyword model storing device stores words to be potentially spoken, as keyword models. The non-keyword model storing device stores words to be potentially spoken, as non-keyword models. The model updating device updates the recognition and non-keyword models, based on a previously recognized word. The recognition device matches the recognition and non-keyword models updated with the voice information. The model updating device updates the non-keyword models utilizing a non-keyword variation vector, which is indicative of variation of the non-keyword models, from the non-updated to the updated, and has been set to be smaller than a non-keyword variation vector applied in the updating of the non-keyword models.
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