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Re: Sync'ing triplestores

From: Elias Torres <eliast@gmail.com>
Date: Mon, 4 Apr 2005 15:28:03 -0400
Message-ID: <905f7c91050404122854dd5199@mail.gmail.com>
To: Joshua Allen <joshuaa@microsoft.com>
Cc: Geoff Chappell <geoff@sover.net>, Bill de hÓra <bill.dehora@propylon.com>, semantic-web@w3.org, Danny Ayers <danny.ayers@gmail.com>

I saw this thread very early on, but I have not followed it on an
on-going basis. Have you guys read this?

http://www.w3.org/DesignIssues/Diff

Elias Torres

On Apr 4, 2005 3:13 PM, Joshua Allen <joshuaa@microsoft.com> wrote:
> 
> Yeah, I was thinking just don't support bnodes -- replace them with some urn:bnode:random-guid syntax
> 
> 
> > -----Original Message-----
> > From: Geoff Chappell [mailto:geoff@sover.net]
> > Sent: Monday, April 04, 2005 11:58 AM
> > To: Joshua Allen; 'Bill de hÓra'; semantic-web@w3.org
> > Cc: 'Danny Ayers'
> > Subject: RE: Sync'ing triplestores
> >
> >
> >
> > > -----Original Message-----
> > > From: semantic-web-request@w3.org
> > [mailto:semantic-web-request@w3.org]
> > > On Behalf Of Joshua Allen
> > > Sent: Monday, April 04, 2005 2:03 PM
> > > To: Bill de hÓra; semantic-web@w3.org
> > > Cc: Danny Ayers
> > > Subject: RE: Sync'ing triplestores
> > >
> >
> > > As for identifying the triples, I would just let each quad
> > > (context+triple) identify the triple.  The context would
> > be the URI
> > > for the source feed, perhaps.
> >
> > That might not be enough if the statement contains a blank node.
> >
> > For example if your repository contains:
> >
> > _:a1 a rss:item; dc:title "Item 1".
> > _:a2 a rss:item; dc:title "Item 2".
> >
> > And your update statement says:
> >
> > Delete:
> >
> > _:b1 a rss:item
> >
> > What happens? Both get deleted? Neither? It's tricky to
> > identify blank nodes. You have to rely on identification by
> > description and if you don't have an inverse function
> > property to work with, you just have to hope that your
> > description is unambiguous.
> >
> > -Geoff
> >
> >
> 
>
Received on Tuesday, 5 April 2005 11:31:25 UTC

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