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Method and device for establishing linguistic model for voice recognition

A language model and language recognition technology, applied in speech recognition, speech analysis, instruments, etc., can solve problems that affect the accuracy of speech recognition, and it is difficult to reflect the user's word habits, so as to achieve the effect of improving accuracy

Active Publication Date: 2013-07-03
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method and device for establishing a language model for speech recognition, so as to solve the defect that the language model in the prior art cannot reflect the user's habit of using words in speech expression, thereby affecting the accuracy of speech recognition

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  • Method and device for establishing linguistic model for voice recognition
  • Method and device for establishing linguistic model for voice recognition

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Please refer to figure 1 , figure 1 It is a schematic flowchart of an embodiment of a method for establishing a language model for speech recognition in the present invention. Such as figure 1 As shown, the method includes:

[0030] S101: Use the recognition result of the user's voice search query as the voice search corpus to perform language model training to obtain a voice language model; and use the user's text search query as the text search corpus to perform language model training to obtain a text language model.

[0031] S102: Fusing the speech language model and the text language model to obtain a recognition language model.

[0032] The above steps are described in detail below.

[0033] Please refer to figure 2 , figure ...

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Abstract

The invention provides a method and a device for establishing a linguistic model for voice recognition. The method includes a first step of utilizing recognition results of voice search queries to users as voice search linguistic data, carrying out linguistic model training to obtain a voice linguistic model, utilizing text search queries of the users as text search linguistic data, and carrying out linguistic model training to obtain a text linguistic model, and a second step of integrating the voice linguistic model and the text linguistic model to obtain a recognition linguistic model. The recognition linguistic model obtained through adoption of the method is capable of well reflecting wording preferences of the users in the voice input process and can be applied to voice recognition to improve accuracy of the voice recognition.

Description

【Technical field】 [0001] The invention relates to speech recognition technology, in particular to a method and device for establishing a language model for speech recognition. 【Background technique】 [0002] Search engines have greatly changed the way people obtain information, and have increasingly become an indispensable part of people's lives. In recent years, with the development of speech recognition technology, voice search has become a more convenient search method. People input a voice search request through a mobile terminal, and then they can obtain search results that meet their needs from a search engine server. [0003] Voice search relies on voice recognition technology. Only by correctly recognizing the user's voice input can the information that the user wants to find be returned. The effect of speech recognition depends on the acoustic model and language model used in speech recognition. Acoustic models are used in speech recognition to calculate speech-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/06
Inventor 万广鲁贾磊
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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