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RE: Overview of design decisions made creating stylesheet and sch ema for Artstor data

From: Butler, Mark <mark-h.butler@hp.com>
Date: Wed, 5 May 2004 10:31:31 +0100
Message-ID: <E864E95CB35C1C46B72FEA0626A2E808ED236C@0-mail-br1.hpl.hp.com>
To: "'karger@mit.edu'" <karger@mit.edu>, "Butler, Mark" <mark-h.butler@hp.com>
Cc: www-rdf-dspace@w3.org

Hi David

I think I understand now. You don't like the objects being called
"Creators". In the end, we didn't do that - they are called "Entity". To
clarify, here is an example from the artstor dataset.

<vra:Image
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Id#UCSD_4182200071
1489">
 <art:metadataCreationDate>2003-09-26</art:metadataCreationDate>
 <art:metadataUpdateDate>2003-09-26</art:metadataUpdateDate>
 <art:imageSource>
    <rdf:Description
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Source#ucsdsrc1">
  <rdfs:label>ucsdsrc1</rdfs:label>
  <rdf:type
rdf:resource="http://web.mit.edu/simile/www/2003/10/artstor#Source"/>
    </rdf:Description>
 </art:imageSource>
 <art:imageId
rdf:resource="http://web.mit.edu/simile/www/metadata/artstor/Image_id#418220
00711489"/>
 <art:objectId
rdf:resource="http://web.mit.edu/simile/www/metadata/artstor/Object_id#17154
4"/>
 <art:inCollection>
    <rdf:Description
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Collection#103">
  <rdfs:label>UCSD</rdfs:label>
  <rdf:type
rdf:resource="http://web.mit.edu/simile/www/2003/10/artstor#Collection"/>
    </rdf:Description>
 </art:inCollection>
 <dc:source
rdf:resource="http://web.mit.edu/simile/www/collections#artstor"/>
 <vra:type>
    <skos:Concept
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/RecordType#work">
  <skos:prefLabel>work</skos:prefLabel>
  <skos:inScheme
rdf:resource="http://web.mit.edu/simile/www/2003/10/artstor#RecordType"/>
    </skos:Concept>
 </vra:type>
 <vra:creator>
    <vra:Entity
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Creator#van_dyck,_
anthony,sir,1599-1641">
  <rdfs:label>Van Dyck, Anthony,Sir,1599-1641</rdfs:label>
  <rdf:type
rdf:resource="http://web.mit.edu/simile/www/2003/10/person#Person"/>
  <vc:Family>Van Dyck</vc:Family>
  <vc:Given>Anthony</vc:Given>
  <vc:FN>Anthony Van Dyck</vc:FN>
    </vra:Entity>
 </vra:creator>
 <vra:id>010523 999916</vra:id>
 <vra:idCurrentAccession>.b40500871</vra:idCurrentAccession>
 <vra:measurementsFormat>
    <skos:Concept
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Format#color">
  <skos:prefLabel>color</skos:prefLabel>
  <skos:inScheme
rdf:resource="http://web.mit.edu/simile/www/2003/10/artstor#Format"/>
    </skos:Concept>
 </vra:measurementsFormat>
 <vra:title>Prince William II and the Princess Mary Stuart</vra:title>
 <vra:period>17th C. A.D</vra:period>
 <topic xmlns="http://web.mit.edu/simile/www/2003/10/artstor#">
    <skos:Concept
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Topic#painting">
  <skos:prefLabel>Painting</skos:prefLabel>
  <skos:inScheme
rdf:resource="http://web.mit.edu/simile/www/2003/10/artstor#topic"/>
    </skos:Concept>
 </topic>
 <geographic xmlns="http://web.mit.edu/simile/www/2003/10/artstor#">
    <skos:Concept
rdf:about="http://web.mit.edu/simile/www/metadata/artstor/Geographic#flander
s_(belgium)">
  <skos:prefLabel>Flanders (Belgium)</skos:prefLabel>
  <skos:inScheme
rdf:resource="http://web.mit.edu/simile/www/2003/10/artstor#geographic"/>
    </skos:Concept>
 </geographic>
 <art:thumbnail
rdf:resource="http://simile.mit.edu/data/artstor/d4035/41822000711489.jpg"/>
   </vra:Image>

Dr Mark H. Butler
Research Scientist, HP Labs Bristol
http://www-uk.hpl.hp.com/people/marbut 


-----Original Message-----
From: David R. Karger [mailto:karger@mit.edu] 
Sent: 05 May 2004 05:56
To: mark-h.butler@hp.com
Cc: www-rdf-dspace@w3.org
Subject: Re: Overview of design decisions made creating stylesheet and sch
ema for Artstor data



I know creators are first class; the problem I was raising was for the case
where a creator C created two distinct objects A and B, but his role in the
two creations was different.  We can of course assign two distinct values to
C.role, but there is no simple way to say which role was for creation of A
and which for creation of B.  

   From: "Butler, Mark" <mark-h.butler@hp.com>
   Cc: SIMILE public list <www-rdf-dspace@w3.org>
   Date: Tue, 4 May 2004 14:41:18 +0100 

   > As usual I am much behind, but I wanted to remark on 
   > another problem with defining a "creator" class the way 
   > you described it.  Since creator.role presumably may be 
   > different for each work, we can't represent someone who 
   > created multiple resources as a unique resource. This 
   > would appear to complicate our goal of linking?

   Creators are first class objects, with URIs, so it is possible to link
them.

   Basically now we using URIs where we may have links, this is why the
   decision in SKOS not to give URIs to alternative terms caused us
problems.

   Dr Mark H. Butler
   Research Scientist, HP Labs Bristol
   http://www-uk.hpl.hp.com/people/marbut 
Received on Wednesday, 5 May 2004 05:32:02 EDT

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