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Re: Mapping of DAML+OIL onto DB

From: Jim Hendler <hendler@cs.umd.edu>
Date: Sun, 31 Mar 2002 00:20:42 -0500
Message-Id: <p0510151bb8cc4c3bedf6@[10.0.1.4]>
To: Chris Mungall <cjm@fruitfly.BDGP.berkeley.edu>, "Andrei S. Lopatenko" <andrei@derpi.tuwien.ac.at>
Cc: Www-Rdf-Logic <www-rdf-logic@w3.org>
At 11:33 AM -0800 3/29/02, Chris Mungall wrote:
>Hi,
>
>Is mapping via XML the best way? What about going straight to an RDF-db
>mapping?
>
>I've had fairly negative experiences of OO-RDBMS mappings.
>
>What about datalog - e.g. something like TRIPLE with XSB using a database
>backend?


I suggest that you look at Jeff Heflin's doctoral thesis (Towards the 
Semantic Web: Knowledge Representation in a Dynamic, Distributed 
Environment [1]) which backed the SHOE language with two different 
DBs - one was XSB, the other was Parka-DB [2].  Parka-DB is the 
current winner in putting an ontology into a relational DB (with 
respect to scaling and having some built in inferencing), and we are 
working on solving some licensing problems so that we can release it 
in some open source forum.
  -Jim Hendler

[1] http://www.cs.umd.edu/~heflin/dissert/
[2] http://www.cs.umd.edu/projects/plus/Parka/parka-db.html
-- 
Professor James Hendler				  hendler@cs.umd.edu
Director, Semantic Web and Agent Technologies	  301-405-2696
Maryland Information and Network Dynamics Lab.	  301-405-6707 (Fax)
AV Williams Building, Univ of Maryland		  College Park, MD 20742
http://www.cs.umd.edu/users/hendler
Received on Sunday, 31 March 2002 00:20:53 GMT

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