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Posted to user@uima.apache.org by Prem Devanbu <de...@cs.ucdavis.edu> on 2013/02/09 01:38:07 UTC
making hiearchical annotations in UIMA
We want to annotated some text with a syntax tree, and we're having trouble finding examples or tutorial content on how this should be done within UIMA. Any pointers appreciated.
Prem Devanbu
Professor, Computer Science
UC Davis
RE: making hiearchical annotations in UIMA
Posted by "Masanz, James J." <Ma...@mayo.edu>.
Significant changes were made to the type sysem for cTAKES (now Apache cTAKES [incubating]) to generalize it and align it with standards where possible. It includes semantic and syntactic types.
http://incubator.apache.org/ctakes/
I suggest you look at ctakes-constituency-parser for an example of handling a syntax tree.
The type system for the current release candidate is:
https://svn.apache.org/repos/asf/incubator/ctakes/branches/ctakes-3.0.0-incubating/ctakes-type-system/src/main/resources/org/apache/ctakes/typesystem/types/TypeSystem.xml
And the latest release under development is:
https://svn.apache.org/repos/asf/incubator/ctakes/trunk/ctakes-type-system/src/main/resources/org/apache/ctakes/typesystem/types/TypeSystem.xml
Here is the citation for the type system
A common type system for clinical natural language processing.
J Biomed Sem. 4:1. 2013.
http://www.jbiomedsem.com/content/4/1/1/abstract
Regards,
James Masanz
Senior Analyst/Programmer
Department of Information Technology
Phone: (507) 722-1727
masanz.james@mayo.edu
Mayo Clinic
mayoclinic.org
> -----Original Message-----
> From: user-return-4751-Masanz.James=mayo.edu@uima.apache.org [mailto:user-
> return-4751-Masanz.James=mayo.edu@uima.apache.org] On Behalf Of Prem
> Devanbu
> Sent: Friday, February 08, 2013 6:38 PM
> To: user@uima.apache.org
> Cc: Jui-Chung Wu
> Subject: making hiearchical annotations in UIMA
>
> We want to annotated some text with a syntax tree, and we're having
> trouble finding examples or tutorial content on how this should be done
> within UIMA. Any pointers appreciated.
>
> Prem Devanbu
> Professor, Computer Science
> UC Davis
>
>
Re: making hiearchical annotations in UIMA
Posted by Damir Cavar <da...@gmail.com>.
Hi Prem,
On Feb 9, 2013, at 2:01 AM, Richard Eckart de Castilho <ec...@ukp.informatik.tu-darmstadt.de> wrote:
> Am 09.02.2013 um 01:38 schrieb Prem Devanbu <de...@cs.ucdavis.edu>:
>
>> We want to annotated some text with a syntax tree, and we're having trouble finding examples or tutorial content on how this should be done within UIMA. Any pointers appreciated.
You can also represent a syntactic tree simply as offsets with tag (assuming a constituent structure tree without overlaps), if the hierarchy is implicit in the offset span. Potential matching offsets have to be handled by other rules (e.g. what cat/tag dominates what other can be handled independently in subsequent components, or a final visualization). Maybe a look at the stand-off annotation approaches in for example TEI XML would help.
> The typical way to represent a tree is defining a tree node type like this:
>
> Node {
> Node parent;
> FSArray<Node> children;
> String tag;
> }
>
> An example for such a type is the "Constituent" type in the DKPro Core Syntax type system:
> (...)
--
Dr. Damir Cavar
http://cavar.me/damir/
FaceTime: dcavar@me.com
Re: making hiearchical annotations in UIMA
Posted by Richard Eckart de Castilho <ec...@ukp.informatik.tu-darmstadt.de>.
Am 09.02.2013 um 01:38 schrieb Prem Devanbu <de...@cs.ucdavis.edu>:
> We want to annotated some text with a syntax tree, and we're having trouble finding examples or tutorial content on how this should be done within UIMA. Any pointers appreciated.
The typical way to represent a tree is defining a tree node type like this:
Node {
Node parent;
FSArray<Node> children;
String tag;
}
An example for such a type is the "Constituent" type in the DKPro Core Syntax type system:
http://code.google.com/p/dkpro-core-asl/source/browse/de.tudarmstadt.ukp.dkpro.core-asl/trunk/de.tudarmstadt.ukp.dkpro.core.api.syntax-asl/src/main/resources/desc/type/Constituency.xml
-- Richard
--
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Richard Eckart de Castilho
Technical Lead
Ubiquitous Knowledge Processing Lab (UKP-TUD)
FB 20 Computer Science Department
Technische Universität Darmstadt
Hochschulstr. 10, D-64289 Darmstadt, Germany
phone [+49] (0)6151 16-7477, fax -5455, room S2/02/B117
eckart@ukp.informatik.tu-darmstadt.de
www.ukp.tu-darmstadt.de
Web Research at TU Darmstadt (WeRC) www.werc.tu-darmstadt.de
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