Am 28.06.2010 10:17, schrieb Barry Norton:
Bob, I wrote a similar representation in WSML-Flight [1] a few years ago
[2], where it was possible to construct an axiom that for a list of
length n there should exist unique values for each of the indices 1-n,
and no others. I doubt that this is possible here (without RIF), is it?
Hi Barry,
as far as I can see, you used rdf:list/rdf:rest for the list modelling,
is that right? You maybe also followed the still ongoing discussion
about rdf:list[1].
One conclusion for me was that we need another concept, which is
independent of rdf:list (rdf:seq). I thought also about adding further
properties, especially olo:previous and olo:next to express a
concatenated list.
This properties could get a owl:cardinality restriction of "1". However,
then it might still be possible to define two slots, which have the same
index in the ordered list, but I currently don't know how to change this
without using a rule, which defines that there could only one slot per
index.
Cheers,
Bob
PS: Please also think about the naming a bit: olo:OrderdList vs.
olo:Sequence, which one would you prefer? (/me +1 olo:OrderedList)
[1]
http://old.nabble.com/What-is-it-that%27s-wrong-with-rdf%3AList-to28920391.html
