Language model adaptation
US11302310B1 · kind B1 · utility
53Cited by
4References
20Claims
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Key dates
| Filing date | May 30, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Mar 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/083
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Exemplary embodiments relate to adapting a generic language model during runtime using domain-specific language model data. The system performs an audio frame-level analysis, to determine if the utterance corresponds to a particular domain and whether the ASR hypothesis needs to be rescored. The system processes, using a trained classifier, the ASR hypothesis (a partial hypothesis) generated for the audio data processed so far. The system determines whether to rescore the hypothesis after every few audio frames (representing a word in the utterance) are processed by the speech recognition system.
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