inquiry about SRI Toolkit

[Andreas Stolcke]

Bing,

the answer to your question is in the ppl-scripts(1) man page.
The script "compute-best-mix" will estimate the optimal interpolation
weights given the ppl output from each of the component models on
an tuning corpus.

--Andreas

In message <Pine.GSO.4.44.0207120959440.12350-100000 at gold>you wrote:
> 
> Dear Dr. Stolcke,
> 
> 
> I'm a graduate student at ECE Dept. of Northeastern University.
> Currently, I've been working on the language modelling and trying to
> use the SRI Toolkit to do the LM interpolation. As I read your online
> document (the command manual), I can see that the "ngram" and
> "ngram-count" program can perform the interpolation operation. However,
> it seems to me that the "ngram" program can only perform
> model interpolation by given a user defined weight, so usually, how
> can I define such weight? Say, if I have a set of validation data,
> can I use the SRI Toolkit to obtain some optimal weights (by EM algorithm
> or some other optimization strategy)? I do appreciate if you could
> give me some advice on that. Thank you very much.
> 
> Best regards
> 
> Bing
>