- From: Pat Hayes <phayes@ihmc.us>
- Date: Wed, 12 Oct 2011 01:14:39 -0500
- To: Sandro Hawke <sandro@w3.org>
- Cc: Ivan Herman <ivan@w3.org>, public-rdf-wg <public-rdf-wg@w3.org>
On Oct 10, 2011, at 8:26 PM, Sandro Hawke wrote: > On Mon, 2011-10-10 at 16:31 -0500, Pat Hayes wrote: >> >> Check out the distinction between 'valid time' and 'transaction time' >> in temporal RDBs. > > Yes, of course, I know that stuff. I wish people made temporal > triplestores; I keep having to cobble my own together. > > It's so frustrating that you can't see what I'm talking about. I'm not > talking about anything weird or complicated here Sorry, but you are. Well, not weird, but certainly complicated. Maybe you don't realize how complicated it is. > , but I guess somehow > I'm using the wrong words so you think I am. > > Doesn't it make sense that when a TriG file says: > > <http://example.org/a> { <s> <p> <o>. } > > it means that "http://example.org/a" names a g-box, and for the purposes > of this TriG file, that g-box should be understood as holding the graph > consisting of that triple? > > If not, then what do you think that TriG file means (or should mean) ? Well, the TriG document talks about 'named graphs' and refers to the Named Graph page, which says that the semantics are given in the Carroll/Bizer/Hayes/Stickler paper (though it does have a broken link, I must admit), which in turn is quite explicit that this means that the name URI names the *graph*, and indeed is a rigid designator of the graph. So, no g-boxes there. Now, let me say at once that we could indeed re-think this along the lines you suggest, in which the name names a g-box. But then you can't use the name to refer to the graph as well, because the g-box and the graph are two different things. VERY different things. Unless of course we have names that refer in a time-dependent way, which (to repeat) moves RDF into being a temporal hybrid/context logic. Pat > > -- Sandro > > > > > > ------------------------------------------------------------ IHMC (850)434 8903 or (650)494 3973 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32502 (850)291 0667 mobile phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes
Received on Wednesday, 12 October 2011 06:15:21 UTC