This discussion about associated occurrences and identity reminds me that I really could use an advisor on my open source project for a common mark-recapture database:<br><br><a href="http://www.ecoceanusa.org/shepherd/doku.php">http://www.ecoceanusa.org/shepherd/doku.php</a><br>

<br>As much as possible, I am trying to map database fields and data management functions to DarwinCore terms and standards.<br><br>Is there anyone who would be willing to act as an &quot;advisor&quot; on the project?<br>

<br>Thanks in advance,<br>Jason Holmberg<br>ECOCEAN USA<br><br><br><div class="gmail_quote">On Mon, Aug 23, 2010 at 12:07 PM, Steve Baskauf <span dir="ltr">&lt;<a href="mailto:steve.baskauf@vanderbilt.edu">steve.baskauf@vanderbilt.edu</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">


  

<div bgcolor="#ffffff" text="#000000">
Bob,<br>
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 &quot;An identifier for an individual or named group of
individual organisms represented in the Occurrence&quot; 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 <br>
<a href="http://bioimages.vanderbilt.edu/baskauf/67307" target="_blank">http://bioimages.vanderbilt.edu/baskauf/67307</a><br>
is an image of an acorn from the same tree: <br>
<a href="http://bioimages.vanderbilt.edu/ind-baskauf/67304" target="_blank">http://bioimages.vanderbilt.edu/ind-baskauf/67304</a><br>
as the bark image<br>
<a href="http://bioimages.vanderbilt.edu/baskauf/67312" target="_blank">http://bioimages.vanderbilt.edu/baskauf/67312</a><br>
I won&#39;t say more here as I have written more extensively on this
approach in <i>Biodiversity Informatics</i> 7:17-44
(<a href="https://journals.ku.edu/index.php/jbi/article/view/3664" target="_blank">https://journals.ku.edu/index.php/jbi/article/view/3664</a>).  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&#39;d using a well-known
vocabulary and therefore be &quot;understood&quot; by linked data clients).<br>
<br>
Steve<div class="im"><br>
<br>
Bob Morris wrote:
<blockquote type="cite">
  <pre><a href="http://rs.tdwg.org/dwc/terms/index.htm#associatedOccurrences" target="_blank">http://rs.tdwg.org/dwc/terms/index.htm#associatedOccurrences</a>   carries
this description:

associatedOccurrences
Identifier:        <a href="http://rs.tdwg.org/dwc/terms/associatedOccurrences" target="_blank">http://rs.tdwg.org/dwc/terms/associatedOccurrences</a>
Class:        <a href="http://rs.tdwg.org/dwc/terms/Occurrence" target="_blank">http://rs.tdwg.org/dwc/terms/Occurrence</a>
Definition:        A list (concatenated and separated) of identifiers of
other Occurrence records and their associations to this Occurrence.
Comment:        Example: &quot;sibling of FMNH:Mammal:1234; sibling of
FMNH:Mammal:1235&quot;. For discussion see
<a href="http://code.google.com/p/darwincore/wiki/Occurrence" target="_blank">http://code.google.com/p/darwincore/wiki/Occurrence</a>
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 &quot;duplicate of&quot; in the case of herbarium sheets.&quot;
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



  </pre>
</blockquote>
<br>
</div><pre cols="72">-- 
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
<a href="http://bioimages.vanderbilt.edu" target="_blank">http://bioimages.vanderbilt.edu</a>
</pre>
</div>

<br>_______________________________________________<br>
tdwg-content mailing list<br>
<a href="mailto:tdwg-content@lists.tdwg.org">tdwg-content@lists.tdwg.org</a><br>
<a href="http://lists.tdwg.org/mailman/listinfo/tdwg-content" target="_blank">http://lists.tdwg.org/mailman/listinfo/tdwg-content</a><br>
<br></blockquote></div><br>