Kingsley Idehen wrote:
Chris Bizer wrote:
Hi Kingsley,
RDFization / Triplicifation of the Freebase Web Services (we've had
this since a few weeks after Banff)
great! Can you please explain this in a bit more detail.
Do you already provide a wrappers so that I can simply put a URI into
the Tabulator or DISCO adress bar and get the corresponding data from
Freebase displayed? Somethink like the RDF Book Mashup?
Yes.
We've had a sponger for Freebase for a while, the issue has been the
quality of the end product (their APIs only go so far) and some quirks
in our sponger cartridge (e.g. it gets too much data i.e. all the Atom
and RSS it finds in addition to the stuff from their API).
If yes, it would be great if you could send some example URIs to the
list.
Of course, I just want it cleaned up first :-) See the links below.
If this (as I guess) somehow involves SPONGER, could OpenLink setup
SPONGER in a way that is works like a simple RDF wrapper around the
Freebase API and so that people can just use the Freebase data with
Tabulator or any other Linked Data browser without having to go into
the details of SPONGER first?
Of course. This is what happens today via our RDF Browser (i.e it use
the Sponger Proxy Service of it's host instance). What you are asking
for is the Sponger as a Web Service (*which means having it on e.g.
DBpedia instance*). The funny thing is that is is always available as
a REST Service of all Virtuoso instances, it just isn't on by default
for a myriad of reasons.
Here is an example URI:
http://demo.openlinksw.com/proxy/rdf/http://www.freebase.com/view/en/open_database_connectivity
(About ODBC
<http://demo.openlinksw.com/rdfbrowser/?uri=http%3A%2F%2Fwww.freebase.com%2Fview%2Fen%2Fopen_database_connectivity>
from Freebase)
http://demo.openlinksw.com/proxy/rdf/http://musicbrainz.org/release/ef5c8852-ac75-4302-8b3b-8c587f78256a.html#this
(About Diana Ross
<http://demo.openlinksw.com/rdfbrowser/?uri=http%3A%2F%2Fdemo.openlinksw.com%2Fproxy%2Frdf%2Fhttp%3A%2F%2Fmusicbrainz.org%2Fartist%2F60d41417-feda-4734-bbbf-7dcc30e08a83.html%23this>
from Musicbrainz)
DISCO and Tabulator aren't processing these URIs above. I suspect the
secondary "http://"; pattern is possibly problematic for both, and >
100 Triple count for DISCO re. Diana Ross. Anyway, we are going to
shave the Triple Count down via Paging re. the Sponger proxy so that
you have the equivalent of what's demonstrated via the DISCO view of
my URIs below:
DISCO is working :-) I just shouldn't have used Safari for my tests :-)
Example: About Diana Ross
<http://demo.openlinksw.com/proxy/rdf/http://musicbrainz.org/artist/60d41417-feda-4734-bbbf-7dcc30e08a83.html#this>
based the Sponger Proxy URI for Dianna Ross:
http://demo.openlinksw.com/proxy/rdf/http://musicbrainz.org/artist/60d41417-feda-4734-bbbf-7dcc30e08a83.html#this
Tabulator isn't working still, so I need to chase Tim about that.
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO
OpenLink Software Web: http://www.openlinksw.com
