On 4/12/11 10:45 AM, glenn mcdonald wrote:

    
http://lod.openlinksw.com/fct/rdfdesc/usage.vsp?g=http%3A%2F%2Fdbpedia.org%2Fresource%2FMichael_Jackson&tp=2
    
<http://lod.openlinksw.com/fct/rdfdesc/usage.vsp?g=http%3A%2F%2Fdbpedia.org%2Fresource%2FMichael_Jackson&tp=2>
    . That's how you discern its from OpenCyc since each datasets is
    loaded into its now Named Graph.


I follow that link and I see that the Michael Jackon entity has 503 references in dbpedia, 2 each in the opencyc and opencyc-readable subsets (I *think* those are included in the 503, but I'm not sure) and a couple others. I still don't see how to trace the provenance of an individual triple.

    Even easier: follow the link, the copy the value of @href from
    "About: XYZ.." or just click on the About: XYZ hyperlink and
    you'll find yourself in the OpenCyc data space :-)


I'm sure you don't meant this seriously. The URI of the entity definitely doesn't answer the question of where the triples that refer to that URI come from...

Again, each Dataset loaded into the Virtuoso Database ends up with its own Named Graph IRI. The triples associated with a Named Graph IRI have "authority" parts in their URIs that indication of their origin.

All we did was load the OpenCyc linkset (as proven by the inverse relation in the DBpedia owl:sameAs relation) into its own Named Graph.


The link: http://lod.openlinksw.com/fct/rdfdesc/usage.vsp?g=http%3A%2F%2Fdbpedia.org%2Fresource%2FMichael_Jackson&tp=2 <http://lod.openlinksw.com/fct/rdfdesc/usage.vsp?g=http%3A%2F%2Fdbpedia.org%2Fresource%2FMichael_Jackson&tp=2> is about a page that shows the Named Graph IRIs holding triples association with the Subject of a specific Description.

Cut long story short, OpenCyc are already fixing there DBpedia linkset across TBox and ABox dimensions, this is an item that's been in progress for a while now. Seeing the data helps people understand the implications the data. If you can't see the data there's nothing to fix, thus we end up in a subjective "fools paradise".

--

Regards,

Kingsley Idehen 
President&  CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen





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