Unsupervised and active learning in automatic speech...

Details Unsupervised and active learning in automatic speech... Unsupervised and active learning in automatic speech...

G - Physics

10

L

G10L 15/06 (2006.01) G10L 15/08 (2006.01)

Patent

CA 2537503

Utterance data that includes at least a small amount of manually transcribed data is provided. Automatic speech recognition is performed on ones of the utterance data not having a corresponding manual transcription to produce automatically transcribed utterances. A model is trained using all of the manually transcribed data and the automatically transcribed utterances. A predetermined number of utterances not having a corresponding manual transcription are intelligently selected and manually transcribed. Ones of the automatically transcribed data as well as ones having a corresponding manual transcription are labeled. In another aspect of the invention, audio data is mined from at least one source, and a language model is trained for call classification from the mined audio data to produce a language model.

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