[tdwg-content] Schema-last and crazy: correlated? [SEC=UNCLASSIFIED]

Peter DeVries pete.devries at gmail.com
Wed Feb 23 23:13:30 CET 2011

Hi Joel,

I see schema last as part of an iterative process in which you mark things
up as you think they will work and revise the data and ontology until it
allows the kinds of queries etc. that you want.

The current Darwin Core maps to spreadsheets and XML but I think that we
might want to work on some representation that works well on the LOD.

This form could be created by cleaning and normalizing DarwinCore

- Pete

On Wed, Feb 23, 2011 at 4:05 PM, joel sachs <jsachs at csee.umbc.edu> wrote:

> Paul,
> Is that Organism#hasIdentification URI from the TDWG ontology? I thought
> the TDWG ontology was de facto deprecated. Am I wrong about that?
> Not only does
> http://tdwg.org/voc/Organism#hasIdentification
> not dereference, but it doesn't even generate real hits via Google. (Even
> http://tdwg.org/voc is broken.)
> My thoughts about hasIdentification are in the context of representing
> Darwin Core as rdf. I think it's important that we continue to allow (and
> encourage) spreadsheet represntations of DwC, and that these map naturally
> to de-normalized rdf.
> I agree that it makes sense, as you suggest, to define hasIdentification
> as a property without domain constraints, and then introduce subProperties
> individualHasIdentification, occurrenceHasIdentification,
> pictureHasIdentification, etc., each with the appropriate domain. Then,
> applications that know what they're doing can apply the correct property.
> You wrote: "a person who uses that predicate to describe a
> painting is misusing the vocabulary and deserves what they get."
> The problem is that it's not just the person who misuses a vocabulary that
> gets a mess of incorrect inferences. We all do.
> Joel.
> On Tue, 22 Feb 2011, Paul Murray wrote:
> >
> > On 20/02/2011, at 1:24 PM, joel sachs wrote:
> >
> >> I'm currently arguing  with  someone off-list about what I think is my
> >> minimal example, that I hope that everyone can agree on. It's about
> domain
> >> constraints on "hasIdentification". If I say
> >>
> >> "http://fu.bar hasIdentifcation rabbit",
> >>
> >> should we, as a community, interpret that to mean that http://fu.bar is
> an
> >> individulOrganism (as opposed to, say, a picture)? Must I, as a guy who
> >> likes to make assertions, be told either
> >
> > been a while since I chimed in on this list.
> >
> > hasIdentification has an RDF namespace. If the full name of the predicate
> is actually
> >
> >       http://tdwg.org/voc/Organism#hasIdentification
> >
> > Then it's probably quite reasonable to make the type assumption. If you
> want to make it more general, then define a more general predicate
> >
> >       http://tdwg.org/voc/Common#hasIdentification
> >
> > and type (IdentifiableThing), and make subclass/subproperty assertions.
> If the namespace/ontoogy that you are importing makes it clear that we are
> talking about organisms, then a person who uses that predicate to describe a
> painting is misusing the vocabulary and deserves what they get.
> >
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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/>
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