Re: [agtk-devel] Q: AGs for text?

[Mark L. <my...@un...>]

 >From: Jochen L. Leidner <joc...@ed...>
 >To: Steve Bird <sb...@cs...>
 >Subject: Q: AGs for text?
 >Date: Sat, 21 Feb 2004 05:50:40 +0000
 >
 >Hi,
 >
 >I've got a question about your Annotation Graph project: has the AG 
 >library been used for TIPSTER-style text annotation, i.e. markup where the 
 >original is NOT converted into an doc. instance of an SGML/XML application
 >but rather byte/characters pointers to the original are separately 
 >maintained?
 >
 >I'm investigating a scheme for manual annotation of place names without 
 >necessarily committing to a specific tokenizer for my gold standard.
 >
 >Thanks very much in advance for your time.
 >
 >Regards,
 >	Jochen
 >

The annotation now done for the DARPA ACE project
http://ldc.upenn.edu/Projects/ACE/
and for a project on biomedical IE at Penn
http://ldc.upenn.edu/myl/ITR
both use standoff markup compatible with AG.

I know that a number of other textual annotation projects do this as
well, but I don't know which of them might be using the AG library.

   -Mark Liberman