Automated speech recognition confidence classifier
US10991365B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 8, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Oct 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/228
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of enhancing an automated speech recognition confidence classifier includes receiving a set of baseline confidence features from one or more decoded words, deriving word embedding confidence features from the baseline confidence features, joining the baseline confidence features with word embedding confidence features to create a feature vector, and executing the confidence classifier to generate a confidence score, wherein the confidence classifier is trained with a set of training examples having labeled features corresponding to the feature vector.
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