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Re: RDF tools as workhorse

From: Steve Harris <S.W.Harris@ecs.soton.ac.uk>
Date: Wed, 14 Sep 2005 09:18:59 +0100
To: semantic-web@w3.org
Message-ID: <20050914081859.GA14130@login.ecs.soton.ac.uk>

On Tue, Sep 13, 2005 at 04:46:51PM -0400, Mailing Lists wrote:
> My concerns relate to:
> 1) Performance -- Right now we query the database using SQL.  Sometimes 
> it is _very_ slow.  That's mainly because the data is distributed 
> across tables and there are a lot of joins going on.  It seems like 
> using RDF would allow us to use simple queries.

Perhaps, I've had some users who experienced very significant performance
gains from moving from SQL metadata representations to RDF, but it depends
on the efficiency of the original SQL representation.
 
> 2) Scalability -- Our triplestore would be HUGE.  I'd estimate 10-20 
> Million triples.  Is that small or large in RDF circles?

The store my consortium produces (3store) is used successfully up to
100M triples or so. Beyond that it gets a bit sketchy. I'm currently
looking at ways to make it scale to 10^9+ without specialising the store
to a particular schema.

- Steve 
Received on Wednesday, 14 September 2005 08:19:15 GMT

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