[tdwg-content] dwc:associatedOccurrences

Steve Baskauf steve.baskauf at vanderbilt.edu
Mon Aug 23 21:07:56 CEST 2010

It seems to me that the most semantically clear way to indicate in a 
machine-readable way that two herbarium sheets are duplicates would be 
to assert that they have the same dwc:individualID.  individualID is 
defined as "An identifier for an individual or named group of individual 
organisms represented in the Occurrence" so asserting that two 
occurrences represent the same individual or named group of individual 
organisms pretty much exactly describes what duplicate specimens are.  I 
use this same approach to indicate that
is an image of an acorn from the same tree:
as the bark image
I won't say more here as I have written more extensively on this 
approach in /Biodiversity Informatics/ 7:17-44 
(https://journals.ku.edu/index.php/jbi/article/view/3664).  You can also 
look at the RDF associated with those GUIDs to see what I mean.  Solving 
this problem is also one of the reasons I have proposed adding the class 
Individual to DwC (i.e. so that the individuals that are the object of 
dwc:individualID can be rdfs:type'd using a well-known vocabulary and 
therefore be "understood" by linked data clients).


Bob Morris wrote:
> http://rs.tdwg.org/dwc/terms/index.htm#associatedOccurrences   carries
> this description:
> associatedOccurrences
> Identifier:	http://rs.tdwg.org/dwc/terms/associatedOccurrences
> Class:	http://rs.tdwg.org/dwc/terms/Occurrence
> Definition:	A list (concatenated and separated) of identifiers of
> other Occurrence records and their associations to this Occurrence.
> Comment:	Example: "sibling of FMNH:Mammal:1234; sibling of
> FMNH:Mammal:1235". For discussion see
> http://code.google.com/p/darwincore/wiki/Occurrence
> Details:	associatedOccurrences
> My questions:
> a.  Are the names of the associations, and/or the syntax of the value
> meant to be community defined?
> b. If no to a. , where are those definitions? If yes, Have any
> communities defined any names and syntax? I am especially interested
> in "duplicate of" in the case of herbarium sheets."
> c. (May share an answer with b.) Is there any use being made by anyone
> in which associatedOccurrences is designed to have machine-readable
> values.  If yes, where?
> Thanks
> Bob

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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.tdwg.org/pipermail/tdwg-content/attachments/20100823/91f1f396/attachment.html 

More information about the tdwg-content mailing list