Method for estimation of feature gain and training starting poin

Details Method for estimation of feature gain and training starting poin Method for estimation of feature gain and training starting poin

1998-04-30

2000-04-11

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

704243, 704255, G10L 1100

Patent

active

06049767&

ABSTRACT:
A method and apparatus for efficiently determining the gain of a feature function in a maximum entropy/minimum divergence probability model in a single pass through a training corpus. A method for determining the gain of a feature in such a model includes the steps of a selecting a set of evaluation points and determining the value of a function referred to as the gainsum derivative at each of the evaluation points. An approximation function which can be evaluated at substantially any point in a continuous domain is then selected based upon the discrete values of the gainsum derivative at the evaluation points. The approximation function is then employed to determine the argument value that maximizes an approximated gain function. The approximate gain value is then determined by evaluating the approximated gain function at this argument value. The apparatus of the present invention includes means for performing the steps of the disclosed method.

REFERENCES:
patent: 5467425 (1995-11-01), Lau et al.
patent: 5640487 (1997-06-01), Lau et al.
A Maximum Entropy Approach to Natural Language Processing, Berger et al., Computational Linguistics, 22(1): 39-71, Mar. 1996.
Inducing Features of Random Fields, Dell Pietra et al., Technical Report CMU-CS-95-144, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, May 1995.

Affiliated with

Also associated with

Rating

Method for estimation of feature gain and training starting poin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for estimation of feature gain and training starting poin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for estimation of feature gain and training starting poin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1183977