Incrementally regulated discriminative margins in MCE...

Details Incrementally regulated discriminative margins in MCE... Incrementally regulated discriminative margins in MCE...

2006-08-25

2009-11-10

Vo, Huyen X. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S244000, C704S243000

Reexamination Certificate

active

07617103

ABSTRACT:
A method and apparatus for training an acoustic model are disclosed. A training corpus is accessed and converted into an initial acoustic model. Scores are calculated for a correct class and competitive classes, respectively, for each token given the acoustic model. From this score a misclassification measure is calculated and then a loss function is calculated from the misclassification measure. The loss function also includes a margin value that varies over each iteration in the training. Based on the calculated loss function the acoustic model is updated, where the loss function with the margin value is minimized. This process repeats until such time as an empirical convergence is met.

REFERENCES:
patent: 6308155 (2001-10-01), Kingsbury et al.
patent: 6341264 (2002-01-01), Kuhn et al.
patent: 7219055 (2007-05-01), Lucke
patent: 2005/0021337 (2005-01-01), Kwon

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