On 1/28/09 2:06 PM, Kurt J wrote:
Hi Virtuosers,
I've just installed my first instance of virtuoso and it's amazing but
i'm awed and a bit frightened by the depth and breadth of the
features!
Basically, I want to explore hosting structured data w/ virtuoso
basically copying to sort of layout dbpedia uses.
I'm starting w/ a modest data set w/ about 10k triples that describes
influence between classical music composers. this was in a single rdf
file which virtuoso quite happily swallowed up and provided a quick
sparql endpoint.
http://dbtune.org/cmn/
http://dbtune.org/cmn/sparql/
currently to make the uris in my data set dereferencable i'm hosting
this rdf file on a separate apache server and using purls w/ a hash
name space. for example john cage has the uri
http://purl.org/NET/classicalmusicnav#CAGE
Yikes! Please don't do that if you have Virtuoso at your disposal :-)
Virtuoso includes Linked Data Deployment functionality.
finally, here's the question. rather than hosting this rdf file like
this, i'd like virtuoso to serve up nifty resource, data, and page
URIs like in dbpedia. and i was hoping this could be done from the
rdf i've already dumped into virtuoso.
Sure!
can someone point me in the right direction? i've been RTFMing starting here
http://docs.openlinksw.com/virtuoso/rdfandsparql.html
but i haven't found what i'm looking for yet (i think).
What you do is use the "Web Application Server" tab in the Conductor to
enter the "Virtual Domain & Directory" realm of Virtuoso where you
create URL re-write rules for Virtual Directories. These rules basically
use SPARQL to do URI de-referencing.
There should be some sample re-rules in place with your installation if
you have the demo DB or ODS installed.
Some links:
1.
http://linkeddata.uriburner.com/about/html/http://realtech.burningbird.net/semantic-web/semantic-markup/stop-justifying-rdfa
2.
http://docs.openlinksw.com/virtuoso/urlrewriting.html#usingurlrewritesolelinkdpl
3.
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtRDFViewNorthwind
(sample RDF View that will create some re-write rules)
Kingsley
cheers!
kurt j
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Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President& CEO
OpenLink Software Web: http://www.openlinksw.com
