Re: [Dbpedia-discussion] Metaweb has published Freebase data dumps

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:

1. My Bookmarks Data Space 
<http://www4.wiwiss.fu-berlin.de/rdf_browser/?browse_uri=http%3A%2F%2Fmyopenlink.net%2Fdataspace%2Fkidehen%2Fbookmark%2FKingsleyBookmarks>
2. My Briefcase Data Space 
<http://www4.wiwiss.fu-berlin.de/rdf_browser/?browse_uri=http%3A%2F%2Fmyopenlink.net%2Fdataspace%2Fkidehen%2Fbriefcase%2FKingsley%2527s%2520Briefcase> 
(aka WebDAV resource collection)
3. My Entire Data Space 
<http://www4.wiwiss.fu-berlin.de/rdf_browser/?browse_uri=http%3A%2F%2Fmyopenlink.net%2Fdataspace%2Fkidehen>
>
> I think this would be really helpfull as we could interlink DBpedia 
> and Freebase afterwards :-)
Yes.

Kingsley
>
> Have a nice Sunday.
>
> Cheers,
>
> Chris
>
> -- 
> Chris Bizer
> Freie Universität Berlin
> +49 30 838 54057
> chris@bizer.de
> www.bizer.de
> ----- Original Message ----- From: "Kingsley Idehen" 
> <kidehen@openlinksw.com>
> To: <public-lod@w3.org>
> Cc: <public-lod@w3.org>; <dbpedia-discussion@lists.sourceforge.net>
> Sent: Sunday, March 30, 2008 6:43 PM
> Subject: Re: [Dbpedia-discussion] Metaweb has published Freebase data 
> dumps
>
>
>>
>> Chris Bizer wrote:
>>> Hi all,
>>>
>>> Metaweb has started to publish data dumps of the complete Freebase 
>>> dataset under  Creative Commons Attribution (CC-BY) license. The 
>>> dumps are in a triple format (not RDF) and Metaweb will update the 
>>> dumps every three months from now on.
>>>
>>> See: 
>>> http://blog.freebase.com/2008/03/28/full-data-dumps-are-now-available/
>>>
>>> I think that it would really be exiting to turn these dumps into 
>>> RDF, publish them on the Web as Linked Data and interlink them with 
>>> data sets from the LOD cloud. For instance, interlinking them with 
>>> DBpedia should be very easy as both datasets contain Wikipedia 
>>> article identifiers.
>>>
>>> If somebody is interested in doing this, please contact me.
>>>
>>> Robert Cook from Metaweb has pointed me at the dumps, so it looks 
>>> like Metaweb itself would also support this effort.
>>>
>> Chris,
>>
>> Nice development in the right direction by Freebase :-)
>>
>> There are dual benefits here:
>>
>> 1. SQL Data
>> 2. XML Data
>>
>> I see value in using the above to demonstrate:
>>
>> 1. Linked Data from SQL-RDF mapping (virtual triples)
>> 2. Persistence of the Virtual Triples to create physical triples
>> 3. RDFization / Triplicifation of the Freebase Web Services (we've 
>> had this since a few weeks after Banff)
>>
>> All of the above provide nice tutorial material re. the routes the 
>> creating and publishing Linked Data which is still a moderately 
>> understood subject.
>>
>> We are certainly interested from an OpenLink (Virtuoso Storage and 
>> Publishing) and also Zitgist perspective (Storage and Publishing that 
>> leverages UMBEL).
>>
>> There will be more on UMBEL and how Zitgist has used this to glue a 
>> myriad of  ontologies together resulting in a Linked Data based 
>> Concept Scheme <http://www.w3.org/TR/skos-reference/#L2430>.
>>
>> Kingsley
>>> Cheers
>>>
>>> Chris
>>>
>>>
>>> -- 
>>> Chris Bizer
>>> Freie Universität Berlin
>>> +49 30 838 54057
>>> chris@bizer.de
>>> www.bizer.de
>>>
>>> ------------------------------------------------------------------------- 
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>>
>>
>> -- 
>>
>>
>> Regards,
>>
>> Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
>> President & CEO OpenLink Software     Web: http://www.openlinksw.com
>>
>>
>>
>>
>>
>
>


-- 


Regards,

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

Received on Sunday, 30 March 2008 18:55:54 UTC