[hts-users:01322] Re: Dependencies in HHEd context clustering

[Sacha Krstulovic <sacha@xxxxxxxxxxxxxxxxx>]

   Hello again;

Thanks for your answers.


> A separate tree is built for each state / stream combination. So, one 
> way to make this step faster is to build these trees in parallel with 
> separate runs of HHEd, then merge the resulting MMFs (there is no HTK 
> tool to do MMF merging though - you need a script)

Instead of merging the MMFs with an external script, would it work
in principle to:
- first output the trees but not the clustered models
   (i.e., launch HHEd with the TB and ST commands but no -w switch);
- then, once the trees are built, use an HHEd run that would
consider the list of full-context models as unknown models
to be built by applying the trees to the initial collection
of states, thus effectively selecting the state cluster
representatives and "forgetting" the other states?
   (I.e., load the initial models with -H, then load the trees
with a series of LT commands, then use an AU command over
the initial list of full-context model names, but this time
with a -w switch to output the clustered models in place of
the original un-clustered ones.)


Thanks in advance and best regards;
                                     -*- Sacha K. -*-
--
Dr.Sacha Krstulovic - Research Engineer
Toshiba Research Europe Limited
Cambridge Research Laboratory
Speech Technology Group
208 Science Park, Milton Road
Cambridge CB4 0GZ - United Kingdom
Tel:    +44 1223 436 978
Fax:    +44 1223 436 909
E-mail: sacha@xxxxxxxxxxxxxxxxx



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