Voice identification efficiency optimization method based on dynamic pruning beam prediction
A speech recognition and pruning technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of difficulty in confidence estimation, insufficient mining of pruning effectiveness, and rarely used alone
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[0057] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0058] In continuous speech recognition with a large vocabulary, the search space is very large due to the increase of the dictionary size, so the decoding process is a very time-consuming part of the speech recognizer. Although the traditional pruning algorithm can improve the decoding efficiency by reducing the pruning beam width, it often leads to a sharp decline in recognition performance. The existing improved pruning algorithm has improved th...
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