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Re: last.fm events RDFizing

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Mon, 11 May 2009 17:51:58 -0400
Message-ID: <4A089DFE.1050201@openlinksw.com>
To: Yves Raimond <yves.raimond@gmail.com>
CC: David Canos <davidcanos@gmail.com>, Keith Alexander <k.j.w.alexander@gmail.com>, public-lod@w3.org
Yves Raimond wrote:
> Hello!
>> Hopefully we can make one coherent Linked Data Space via xslt at:
>> http://demo.openlinksw.com/DAV/VAD/rdf_mappers/xslt/lastfm2rdf.xsl
>> Example:
>> http://linkeddata.uriburner.com/about/html/http://linkeddata.uriburner.com/about/rdf/http://www.last.fm/music/Con+Funk+Shun%23this
>> As per earlier post, all the xslt components of our sponger cartridges are
>> at:
>> http://demo.openlinksw.com/DAV/VAD/rdf_mappers/xslt/
>> Let's tweak rather that reinvent the wheel, everyone is ultimately time
>> challenged :-)
> Wow! That is great!! Perhaps you should contact Last.FM to ask them to
> link to these stylesheets as GRDDL transformations (this is also valid
> for the other services RDFised by the stylesheets you mentioned
> above)?
Yes, they all use a consistent pattern re. proxy/wrapper linked data URIs.

Re. last.fm folks, if me combine efforts and produce meshes with good 
domain fidelity, we can simply use the "owl:shameAs" pattern to get them 
on board :-)

> However, I think these three RDFisers are complementary.
> For example,
> http://linkeddata.uriburner.com/about/html/http://linkeddata.uriburner.com/about/rdf/http://www.last.fm/event/958377
> seems to RDFise the microformatted event, whereas Keith's description
> is much richer and especially holds links to other services.
No, its just little bugs in the xslt. This cartridge is supposed to make 
a data space comprised of many things:

Artist Descriptions, Events, Genre's etc..

Our problem is that we've built 30+ cartridges and counting, and this 
leads to subtle drops in fidelity when you look at some of the graphs 
with domain specificity. Hence my callout for everyone to put heads 
together since we have all the pieces, but are missing the critical 
essence: working together rather than past one another en route to the 
same destination :-)

> Same thing for profile pages, which give less information and less
> links than Keith's service (dealing with events) the corresponding
> dbtune service (dealing with foaf:knows and last scrobbles).
Yes, but note, how our works, you go to the page via 
<http://ode.openlinksw.com> and you simply view Page Description. We 
start by describing the document which unveils what the document is about.

I noticed that HTML5 [1] has quite an understanding (to my pleasant 
surprise) of this aspect of matters that has generally been overlooked 
in the RDF realm.





Kingsley Idehen	      Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com
Received on Monday, 11 May 2009 21:52:36 UTC

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