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Re: fast inferencing with jena and "?"

From: Jeremy Wong <50263336@student.cityu.edu.hk>
Date: Mon, 21 Mar 2005 02:17:58 +0800
To: Leo Sauermann <leo@gnowsis.com>, semantic-web@w3.org
Message-id: <001801c52d79$24e61b80$0401a8c0@wongkjo9u38gzb>

Can you supply all files associated with your problem for reference?


Jeremy

----- Original Message ----- 
From: "Leo Sauermann" <leo@gnowsis.com>
To: <semantic-web@w3.org>
Sent: Sunday, March 20, 2005 11:39 PM
Subject: fast inferencing with jena and "?"


> 
> We are using jena in a semi-commercial application and have to do simple
> RDF/S inferencing on subclasses and subproperties.
> 
> We used Jena as basis for the app.
> 
> The problem with Jena is: the Model RDFS_MEM_TRANS_INF is too slow to do
> simple inference (and it was the fastest we found in jena)
> 
> It has 200ms performance of matching two small rdf instance models
> against a RDF/S ontology model (180 classes). Normal developer PC.
> We did everything we could to make it faster, including prefetching all
> classes, properties, trying out different Jena inferencers, etc.
> 
> Question:
> What inference engine can be plugged into Jena smoothely?
> 
> any experiences or papers about that?
> 
> any help appreciated.
> 
> cheers
> Leo
> 
>
Received on Monday, 21 March 2005 01:37:05 UTC

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