A phonetic search over a language model generates alternative transcriptions, and a discriminative rescorer picks the best one, reducing WER on movie-title voice queries by 4.4 to 7.6 percent relative.
Modeling Spoken Information Queries for Virtual Assistants: Open Problems, Challenges and Opportunities,
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Phonetically-Augmented Discriminative Rescoring for Voice Search Error Correction
A phonetic search over a language model generates alternative transcriptions, and a discriminative rescorer picks the best one, reducing WER on movie-title voice queries by 4.4 to 7.6 percent relative.