Indeed, you cannot do this merging: a ctag:Tag refers to the tagging
event. So the concepts they refer to (ctag:means) might be the same, the
Tags are not.
Cheers,
Peter
Yves Raimond wrote:
Hello!
On Fri, Jun 12, 2009 at 11:38 AM, Danny Ayers<danny.ay...@gmail.com> wrote:
Really good to see this work!
May be nothing, but...it appears the tagging date is associated with
the tag. I assume most systems would want to infer that tags with the
same meaning were equivalent (even though this isn't specified using
IFPs or whatever). I'm a little concerned about what you'll get when
merging different doc's data with this assumption of equivalence -
<doc1> ctag:tagged [
a ctag:Tag
ctag:taggingDate "2009-06-12"
ctag:means <http://rdf.freebase.com/ns/en/collaborative_tagging> ] .
<doc2> ctag:tagged [
a ctag:Tag
ctag:taggingDate "2009-06-13"
ctag:means <http://rdf.freebase.com/ns/en/collaborative_tagging> ] .
->
[ a ctag:Tag
ctag:taggingDate "2009-06-12"
ctag:taggingDate "2009-06-13"
ctag:means <http://rdf.freebase.com/ns/en/collaborative_tagging> ]
- which doesn't look very useful.
Yes, this indeed will give quite weird results. The tag ontology at
[1] tackles this issue nicely, by considering a tagging event and the
tag itself as two different entities.
Cheers,
y
[1] http://www.holygoat.co.uk/projects/tags/
