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Device, method and system for generating utterance verification critical value

A technology of critical value and words, applied in the field of speech recognition system

Active Publication Date: 2013-01-02
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods are all nothing more than an action to obtain the recognition result through speech recognition through the test data of the new environment, and then update the previously preset word confirmation threshold after analyzing it.

Method used

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  • Device, method and system for generating utterance verification critical value
  • Device, method and system for generating utterance verification critical value
  • Device, method and system for generating utterance verification critical value

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Embodiment Construction

[0052] This embodiment proposes a method for calculating the threshold value for word confirmation. After the recognition target is determined, a suggested threshold value can be obtained according to the expected word confirmation effect. In addition, there is no need to collect additional corpus or train models.

[0053] Please refer to image 3 , when the identification target is determined to be an instruction set 310 , the automatic analysis tool 320 adopts a fully automatic rather than manual offline (Offline) processing method, and analyzes according to a preset condition to obtain a suggested critical value. In this embodiment, the recognition result is not obtained through speech recognition in a new environment, and then the recognition result is analyzed and confirmed for the previously preset words, and the threshold value is updated. In this embodiment, before the voice recognition system starts to use, the effect of word confirmation has been adjusted for a speci...

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Abstract

The invention discloses a device, a method and a system for generating an utterance verification critical value. When an identification target to be processed is determined, a suggest clinical value can be obtained according to the expected utterance verification effect, and besides, extra collection for linguistic data and training model can be avoided. The method comprises the following steps: firstly, calculating one or more numerical data corresponding to at least one speech unit; secondly, when at least one speech unit sequence is received, receiving the numerical data corresponding to each speech unit in the speech unit sequence and combining the numerical data into the numerical distribution corresponding to the speech unit sequence; and finally, generating a suggest clinical valueaccording to the expected utterance verification effect and the numerical distribution and outputting the suggest clinical value.

Description

technical field [0001] The invention relates to a speech recognition system, and in particular to a device and method for generating a word confirmation critical value suitable for the speech recognition system. Background technique [0002] Word confirmation (or word verification, utterance verification) function is an indispensable part of the speech recognition system, which can effectively reject recognition errors caused by out-of-vocabulary. In the current word confirmation algorithm, after calculating a word confirmation score, it will be compared with a critical value. When the score exceeds the critical value, it means that the word confirmation is successful, otherwise it means that the confirmation fails. In practical applications, the best critical value can be obtained by collecting additional corpus and analyzing the expected confirmation effect, and most of the solutions are aimed at such an architecture to try to find the best word confirmation effect. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L15/14
Inventor 林政贤张森嘉邱祺添
Owner IND TECH RES INST
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