[developers] Feature unification API library

Michael Wayne Goodman goodmami at u.washington.edu
Thu Jul 23 09:59:41 CEST 2009

As an exercise I've made a library in Python that holds feature
structures (with some nice interfaces and recursive structure, so you
could do avm[SYNSEM][LOCAL] or avm[SYNSEM.LOCAL], etc.), and it did
some unification, but was by no means fast.

This isn't the library what you're looking for, but I thought I'd
throw it out there in case anyone is interested.

On Thu, Jul 23, 2009 at 12:21 AM, W.P. McNeill
(UW)<billmcn at u.washington.edu> wrote:
> I've talked to a couple of you about this at the Barcelona summit but I
> wanted to send a broader email.
> One thing I'd love to have is a fast, efficient, library-based
> implementation of feature structure unification.  Something written in C and
> separate from the cheap code so that it could be called by other
> programs/scripting languages, NLTK etc.
> I'm picturing a user-provided function for value unification whose prototype
> looks something like this:
> bool value_unify(char *value1, char* value2)
> so that the whole issue of what kind of grammar you have is kept separate.
> Has anyone ever tried to create a library like this?  If not, where is the
> unification source code in cheap so that I can get an idea of how it works?
> I have absolutely no time to look at this in the near future, but I've been
> curious about it for a while so it would be good information to know and
> have archived.
> --
> W.P. McNeill
> http://staff.washington.edu/billmcn/index.shtml

-Michael Wayne Goodman

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