All,
When I read the notice from Sebastian earlier today, re. the new
DBpedia & Wikipedia real-time variant, it dawned on me to use this new
DBpedia instance to demonstrate a fundamental feature of DBpedia
deployment. Basically, what I've referred to in prior commentary as a
"subtle nuance" added to the Linked Data deployment mix.
Sequence:
1. Our DBpedia partners at University of Leipzig put out an initial bet
cut of DBpedia with real-time links to Wikipedia
2. Their demo links are to the SPARQL endpoint which produces a basic
Web results page without any live links (de-referencable URIs)
3. I ping Sebastian and indicate to him that by simply installing the
DBpedia VAD package (Virtuoso's equivalent of an RPM) you will get the
same Linked Data deployment used by the live DBpedia instance, our EC2
AMIs, and the DBpedia on Virtuoso 6.0 instance that we are currently hot
staging.
Post the above (about 3 mins or less for me to install the VAD from
Burlington, MA into the instance in Leipzig, Germany), we now have:
1. http://db0.aksw.org:8890/resource/Virtuoso_Universal_Server
2. An owl:sameAs link to
http://dbpedia.org/resource/Virtuoso_Universal_Server
3. Local URI dereferencing on the Leipzig Virtuoso instance
(irrespective of the actual URIs in the Quad Store, think of this as
outbound rewrite rules to complement inbound rewrite rules via SPARQL).
To conclude, this is a simple demonstration of how to address the
problem of Linked Data Set propagation en route to Linked Data Web
resilience i.e., a Linked Data Web where URIs may come and go, but the
actual data (URI / Pointer referents) persist. The more replicas the
more resilient the Linked Data Web becomes.
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO
OpenLink Software Web: http://www.openlinksw.com
