Expressing position in RDF
eshaya at umd.edu
Mon Oct 13 19:24:30 PDT 2008
Matthew Graham wrote:
> A practical semantic astronomy question:
> I want to represent the relationship "object has a RA of 134.556" as
> an RDF triple. Is there any existing ontology that would allow me to
> do this? The best I've seen so far is to use the UCD as the predicate.
It is usually not a good idea to put out a question late on Friday
afternnoon before a 3 day holiday, if you want a fast response.
Here is "MyStar has a J2000 RA of 34.5343 degrees, it would be something
like this in N3:
:MyStar a a:star;
:MyCoordinates a a:J2000Coordinates;
:MyRA a a:rightAscension;
The following is extracted from an RDF/XML generated by Protege4_beta.
<!-- http://archive.astro.umd.edu/ont/IVOAO.owl#MyStar -->
<!-- http://archive.astro.umd.edu/ont/IVOAO.owl#MyCoordinates -->
<!-- http://archive.astro.umd.edu/ont/IVOAO.owl#MyRA -->
Normally, I would put a hasValue FloatValue between MyRa and hasFloat,
but it is probably workable this way also.
Why do you ask?
More information about the semantics