On Jul 25, 2009, at 5:09 AM, Bill Roberts wrote:
Regarding linking to external resources, what it seems you want
to do is to identify the dc:creator of the book, hence say that
the creator is the person whose name was Thomas More. You could
create your own URI and if you are managing a whole bunch of data
about books and authors, then there could be reasons to do that,
but in general if there is a satisfactory existing URI, it is
preferable to use it. Dbpedia seems to have become the de facto
standard...
Okay, then how's this for a recipe to create rich linked data of
electronic books and authors within my own site as well as to the
outside world:
1. Mint URIs pointing to representations of local etexts
2. Mint URIs pointing to representations of authors of local etexts
3. In resources of etexts, include owl:sameAs links to DBpedia
resources
4. In resources of etexts, point to local URIs of authors
5. In resources of authors, include owl:sameAs links to DBpedia
resources
6. In resources of authors, include owl:creatorOf links to local
etexts
7. For extra credit, do the same thing for subjects/keywords
For example, the following resource descriptions:
<!-- etext #1; points to local author and remote title -->
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:dcterms="http://purl.org/dc/terms/";
xmlns:owl="http://www.w3.org/2002/07/owl#";>
<rdf:Description
rdf:about="http://infomotions.com/etexts/id/more-utopia-221";
owl:sameAs="http://dbpedia.org/resource/Utopia_(book)">
<dcterms:title>Utopia</dcterms:title>
<dcterms:creator rdf:resource="http://infomotions.com/etexts/authors/resource/thomas-more
" />
</rdf:Description>
</rdf:RDF>
<!-- etext #2; points to local author and remote title -->
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:dcterms="http://purl.org/dc/terms/";
xmlns:owl="http://www.w3.org/2002/07/owl#";>
<rdf:Description
rdf:about="http://infomotions.com/etexts/id/more-reality-404";
owl:sameAs="http://dbpedia.org/resource/Reality_(book)">
<dcterms:title>Reality</dcterms:title>
<dcterms:creator rdf:resource="http://infomotions.com/etexts/authors/resource/thomas-more
" />
</rdf:Description>
</rdf:RDF>
<!-- author; points to local etexts and remote author -->
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:owl="http://www.w3.org/2002/07/owl#";>
<rdf:Description
rdf:about="http://infomotions.com/etexts/authors/resource/thomas-more
"
owl:sameAs="http://dbpedia.org/resource/Thomas_More";>
<owl:creatorOf rdf:resource="http://infomotions.com/etexts/id/more-utopia-221
"/>
<owl:creatorOf rdf:resource="http://infomotions.com/etexts/id/more-reality-404
" />
</rdf:Description>
</rdf:RDF>
--
Eric Lease Morgan
