Re: [agtk-devel] Implementations of AG query language?

[Steven B. <sb...@cs...>]

Hi Eric,

Thanks for posting this question.  Since we did the work you
described, we've developed a new path language for linguistic tree
query, called LPath, and implemented it on top of a relational
database that holds AG-style representations of annotations.  The
following webpage has the pointers to publications about LPath and
some information about a new graphical interface we've developed.

http://projects.ldc.upenn.edu/QLDB/

We are in the process of setting up a publicly accessible database
server so that people can experiment with LPath and its graphical
front-end.  Once it is stable we will distribute the code with an open
source license (probably around the middle of 2007 when the current
NSF project finishes).

-Steven

On 2/28/07, Eric J. M. Smith <eri...@ut...> wrote:
> Greetings,
>
> I am new to the AGTK, and have a question about query languages.
> There are a number of papers (Ma et al 2002; Cassidy & Bird 2002;
> Bird, Buneman & Tan 2000) which develop a syntax for making queries
> against annotation graphs.  Is there an available AGTK-based
> implementation of this query language?  I'm looking into using
> annotation graphs for a corpus I'm working on, and it would be nice
> if I could pull a query language off the shelf, rather than
> reinventing this particular wheel.
>
> Any suggestions are welcome.  (I apologise in advance if this is a FAQ).
>
> Thanks,
>
> Eric J. M. Smith
> Dept. of Linguistics
> University of Toronto
>
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