> Sphinx and Festival are good projects. The last I worked with sphinx
> I
> was told that it would need modifications to make it more grammar
> aware,
> but that was 2 years ago and things may have improved. If not then
> Sphinx people please let me know when you will add grammars natively
> or
> refer me a grammar based engine.
Sphinx and Festival are in fact the current state of the art.
you are not likely to find anything better.
Sphinx can return a "probibility network". You can then attempt
to parse paths through the network and use the first path
(searching in probibillity order) that parses correctly.
You can use a LEX/YACC parser and do well enough. (Get the
O'Reilly LEX/YACC book. It's easy to use.) I'm impressed with
YACC's performance. I have an application with hundres of
grammar rules that runs as fast as UNIX's "wc" utility.
Users _can_ learn the subset of grammer. Remember the game
"zork" or the other text based adventure games? People caught
on to the limited subset of English.
=====
Chris Albertson
Home: 310-376-1029 [EMAIL PROTECTED]
Cell: 310-990-7550
Office: 310-336-5189 [EMAIL PROTECTED]
KG6OMK
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