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Re: Using RDB for a large OWL-DL database.

From: Sören Auer <auer@informatik.uni-leipzig.de>
Date: Thu, 28 Sep 2006 09:19:32 -0400
Message-ID: <451BCBE4.3060004@informatik.uni-leipzig.de>
To: Jinsung Seol <sjs98ed@blue.knue.ac.kr>
CC: public-owl-dev@w3.org

Dear Jinsung Seol,

The problem you mentioned is very interesting and offers promising 
applications. I'm currently working on an OWL descriptions -> DB views 
translation. The implementation works meanwhile quite well (it's able to 
answer all LUMB [1] queries in a scalable way). I'm currently writing a 
paper, explaining the translation algorithm (the challenge is to deal 
with recursive OWL definitions, being not allowed in SQL). I will post 
an announcement to this list once I'm done. Meanwhile you can check the 
OWLDB module in Powl's [2] CVS repository [3] for the implementation, 
working on Powl's SemanticWeb PHP API with a MySQL backend. Code and 
installation however is not yet well documented.

Cheers,
Sören


[1] http://swat.cse.lehigh.edu/projects/lubm
[2] http://powl.sf.net
[3] http://powl.cvs.sourceforge.net/powl/owldb


--------------------------------------------------------------
Sören Auer - http://www.seas.upenn.edu/~auer +1 (610) 804-5142
University of Pennsylvania, Dep. of Computer & Inform. Science
Received on Thursday, 28 September 2006 13:19:52 GMT

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