Method and apparatus for distribution-based language model...

Details Method and apparatus for distribution-based language model... Method and apparatus for distribution-based language model...

2007-08-07

2007-08-07

Hudspeth, David (Department: 2626)

Data processing: speech signal processing, linguistics, language

Linguistics

Natural language

C704S010000, C704S240000, C704S250000, C704S257000

Reexamination Certificate

active

11225543

ABSTRACT:
A method and apparatus are provided for adapting a language model to a task-specific domain. Under the method and apparatus, the relative frequency of n-grams in a small training set (i.e. task-specific training data set) and the relative frequency of n-grams in a large training set (i.e. out-of-domain training data set) are used to weight a distribution count of n-grams in the large training set. The weighted distributions are then used to form a modified language model by identifying probabilities for n-grams from the weighted distributions.

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