Well, N3 is just predicate logic done badly. If we want to move in
that direction, I would vastly prefer extending RDF to ISO Common
Logic, or something based on it.
Pat
On Jul 2, 2010, at 2:45 AM, Nathan wrote:
Ian Davis wrote:
On Fri, Jul 2, 2010 at 4:44 AM, Pat Hayes <pha...@ihmc.us> wrote:
Jeremy, your argument is perfectly sound from your company's POV,
but not
from a broader perspective. Of course, any change will incur costs
by those
who have based their assumptions upon no change happening. Your
company took
a risk, apparently. IMO it was a bad risk, as you could have
implemented a
better inference engine if you had allowed literal subjects
internally in
the first place, but whatever. But that is not an argument for
there to be
no further change for the rest of the world and for all future
time. Who
knows what financial opportunities might become possible when this
change is
made, opportunities which have not even been contemplated until now?
I think Jeremy speaks for most vendors that have made an investment
in
the RDF stack. In my opinion the time for this kind of low level
change was back in 2000/2001 not after ten years of investment and
deployment. Right now the focus is rightly on adoption and fiddling
with the fundamentals will scare off the early majority for another 5
years. You are right that we took a risk on a technology and made our
investment accordingly, but it was a qualified risk because many of
us
also took membership of the W3C to have influence over the technology
direction.
I would prefer to see this kind of effort put into n3 as a general
logic expression system and superset of RDF that perhaps we can move
towards once we have achieved mainstream with the core data
expression
in RDF. I'd like to see 5 or 6 alternative and interoperable n3
implementations in use to iron out the problems, just like we have
with RDF engines (I can name 10+ and know of no interop issues
between
them)
Sounds good, doesn't break anything for anybody, and anybody who
adopts N3 get's all the deployed RDF goodness too! - from what Pat
says it seems RDF Semantics supports most of N3 apart from a few
syntax bits and the notable graph literals - perhaps an idea to try
and get graph literals in to the RDF Semantics before we hit this
again in 2020 and wonder why the then well supported N3 doesn't have
them :)
my how this has came full circle,
Best,
Nathan
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