[tdwg-content] Literal and URI versions of terms (was Re: [tdwg-tag] Do terms in the http://rs.tdwg.org/dwc/terms/ namespace actually resolve?)
steve.baskauf at vanderbilt.edu
Wed Sep 1 16:40:04 CEST 2010
Thanks for the response about term resolution. I'm over my head on that
topic, so I'll let others respond to that part.
With regards to a vocabulary that uses URIs rather than literals, I'm in
favor of that. At one point in a previous discussion, I think it was
suggested that separate terms be created for literal and URI versions of
terms like dwc:recordedBy. At first I liked that idea, but after
thinking about it and playing with it for a while, I think that the
suggestion of just applying a label property to the resource identified
by the URI is simpler and wouldn't require a proliferation of new
terms. For example:
<rdfs:label>University of Louisiana at Monroe
could be used if both a literal and URI were available and
<dcterms:creator>University of Louisiana at Monroe
could be used if a URI were not available. It seems like it should be
relatively easy for a linked data client to have contingencies to deal
with this. Even with technology that's semantically "dumb" like XSLT,
it's pretty easy to code for the two possibilities.
But I suppose it would be good to have some kind of consensus that this
is the preferred approach. Otherwise, separate terms might be better.
There aren't a whole lot of dwc terms to which this situation would apply.
Peter DeVries wrote:
> By "efficient", I mean a vocabulary that uses standard resolvable
> URI's instead of literals for standard terms etc. This solution would
> also avoid the problem that Markus just mentioned.
> I am also wondering if the "individual" definition should be changed
> to mean one individual organism rather than a potential collection of
> individuals. Individuals from the same colony could be represented
> using a separate related vocabulary. Allowing multiple
> individuals will cause problems for consuming applications. For
> instance, is the queen a separate individual or not? How do you
> differentiate between a photo of the queen vs. a photo of one of the
> workers. There are also potential problems even if the individuals
> are all workers.
> I have been thinking that for some attributes like character states,
> it might be best to have a family level ontology. In this example, you
> might have a "formicidae_ontology", that could be used to deal with
> individuals from the same colony as well as ant specific character states.
> <rdf:Description rdf:about="http://example.org/individual/123412">
> <ant:colonyMateOf rdf:resource="http://example.org/individual/123414"/>
> This could be defined as a subproperty of dc:relation or something
> similar in the gbif/tdwg vocabulary.
> - Pete
> On Tue, Aug 24, 2010 at 6:43 PM, Steve Baskauf
> <steve.baskauf at vanderbilt.edu <mailto:steve.baskauf at vanderbilt.edu>>
> I was doing some GUID testing using a Linked Data client and I noticed
> that some Darwin Core terms did not seem to resolve to anything.
> I ran
> a test using
> I first I looked up
> and all four clients reported the properties of the term. Then I
> and nothing happened with any of them. I ran a Vapour
> validation on the basisOfRecord URI and got the following message:
> Vapour was unable to complete the request due to the following
> ForbiddenAddress: forbidden request from 18.104.22.168 to
> http://rs.tdwg.org/dwc/terms/basisOfRecord (resolves to IP
> 22.214.171.124), internal IP addresses are forbidden
> I have no idea what that means, but all of this seems to mean that
> Darwin Core is currently "broken" from a Linked Data point of view.
> Steven J. Baskauf, Ph.D., Senior Lecturer
> Vanderbilt University Dept. of Biological Sciences
> postal mail address:
> VU Station B 351634
> Nashville, TN 37235-1634, U.S.A.
> delivery address:
> 2125 Stevenson Center
> 1161 21st Ave., S.
> Nashville, TN 37235
> office: 2128 Stevenson Center
> phone: (615) 343-4582, fax: (615) 343-6707
> tdwg-tag mailing list
> tdwg-tag at lists.tdwg.org <mailto:tdwg-tag at lists.tdwg.org>
> Pete DeVries
> Department of Entomology
> University of Wisconsin - Madison
> 445 Russell Laboratories
> 1630 Linden Drive
> Madison, WI 53706
> TaxonConcept Knowledge Base <http://www.taxonconcept.org/> /
> GeoSpecies Knowledge Base <http://lod.geospecies.org/>
> About the GeoSpecies Knowledge Base <http://about.geospecies.org/>
Steven J. Baskauf, Ph.D., Senior Lecturer
Vanderbilt University Dept. of Biological Sciences
postal mail address:
VU Station B 351634
Nashville, TN 37235-1634, U.S.A.
2125 Stevenson Center
1161 21st Ave., S.
Nashville, TN 37235
office: 2128 Stevenson Center
phone: (615) 343-4582, fax: (615) 343-6707
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the tdwg-content