Andrea Splendiani wrote:
One thing that I think would be very useful, though it poses some
semantic problem... is the possibility to assert equivalence in rdf.
At the moment equivalence can be asserted only in owl (and this
implies a distinction between individuals, properties, classes...).
But that is a lower level statement we can make about URI.
For instance, I can say that:
http://dbpedia.org/resource/Dopamine_receptor
is the same uri as:
http://dbpedia.org/resource/DopamineReceptor
And I want to say this independently from the interpretation
associated to this URI, as my knowledge about the identity is a-priori:
if this leads to inconsistency, then this is because what is expressed
is inconsistent, not because of this equivalence.
Is there a way to express this in RDF ? Don't think so...
I am not sure exactly what you intend. Do you mean that you want to
assert the equivalence of the URI as the symbols or you want to assert
that the referent of the two URIs are the same? If your intension is
the latter, I don't think RDF offers this kind of vocabulary. But you
can always mint your own terms just as with all other concepts that is
not in RDF, right?
If you want to assert the equivalence of two URI, but not the resource
that they references. There isn't a straight-forward answer but there
can be work-around.
For instance, you can design a class, say URI, which has a string
property that confirms to URI spec. Of course, if you want, you can
also make it several properties according to the URI spec. Then, you
can create instance of this URI class, which URI can be either a b-node
or you can designate another URI to it. This would allow you to make
assertions on URI rather than its referent..
Such an inconvenience of describing URI is due to the incomplete syntax
of URI. Among the three essential things of the Web, URI,
Representation, and Resource, only Resource is "conveniently* in URI's
referential realm. I have suggested a solution in [1] to offer some
syntactic sugar. In that proposal,
"http://dbpedia.org/resource/Dopamine_receptor?"; would by definition
denote the URI. This would greatly simplify the task.
Xiaoshu
1. http://dfdf.inesc-id.pt/tr/uri-issues
ciao,
Andrea
Il giorno 27/feb/09, alle ore 03:03, Kei Cheung ha scritto:
I gave the following neuroscience URI examples in my biordf talk at
C-SHALS yesterday.
http://dbpedia.org/resource/Dopamine_receptor
http://purl.org/ycmi/senselab/
neuron_ontology.owl#Dopaminergic_Receptor
http://purl.org/nif/ontology/NIF-Molecule.owl#nifext_5832
I pointed out that the last one might be a possible solution. There
might be hope. :-)
-Kei
Alan Ruttenberg wrote:
So I count three different sets of URIs for NCBI taxonomy so far. :(
-Alan
On Fri, Feb 27, 2009 at 11:37 AM, Chris Mungall
<c...@berkeleybop.org> wrote:
also..
part of the NCBI taxonomy is in NIF Organism:
http://ontology.neuinfo.org/NIF/BiomaterialEntities/NIF-Organism.owl
See also:
https://wiki.neuinfo.org/xwiki/bin/view/Main/NIFSTDoverview
http://neuinfo.org
On Feb 25, 2009, at 4:17 PM, andrea splendiani (RRes-Roth) wrote:
Thanks!
It'2 240M, but compressed is only 9.
I wonder whether there is some architecture to transparently
transfer
compressed ontologies...
Ciao,
Andrea
-----Original Message-----
From: Chris Mungall [mailto:c...@berkeleybop.org]
Sent: 25 February 2009 20:53
To: andrea splendiani (RRes-Roth)
Cc: public-semweb-lifesci hcls
Subject: Re: Is there an NCBI taxonomy in OWL ?
On Feb 25, 2009, at 11:58 AM, Andrea Splendiani wrote:
Hi,
I was looking for an NCBI Taxnomoy in OWL, but I didn't find it
(or
better, could find fragment from other projects...)
What is strange though, is that on the obo foundry website
(berkeleybop.org/ontologies) there are notes on the ncbi taxonomy
representation in owl... but not the representation itself.
Temporarily dropped from the summary page but still available at
the
usual URL
http://purl.org/obo/owl/NCBITaxon
(warning: large..)
Does anybody have some hint about where I can fin an OWL version ?
Or even an RDF version ? Even better would a sparql endpoint
containing it...
best,
Andrea Splendiani
