On Sep 26, 2012, at 10:14 AM, Sandro Hawke wrote: > On 09/26/2012 09:42 AM, Kingsley Idehen wrote: >> On 9/25/12 10:48 PM, Gavin Carothers wrote: >>> On Tue, Sep 25, 2012 at 7:08 PM, Pat Hayes <phayes@ihmc.us> wrote: >>>>> PROPOSED: Our dataset syntax will allow for the expression of empty named graphs, whatever their semantics might be (to be decided). The syntax is an empty curly-braces expression, as in "<g> { }". >>>> +1. However, note that there is only one empty graph: it is unique. >>> Yes! There is only one empty graph. +1 Pat, now my brain hurts less. >>> >>> >>> >> +1 >> > > It seems to me that when people say "named graph" they are often (very nearly always) referring to a g-box not a g-snap. Hm. That doesn't match my experience, even in the calls in which we both participate. I find that "named graph" *often* refers to a g-snap, though the person using the term may not realize it -- even when they do realize that g-box and g-snap are distinct -- until lots of discussion and misunderstanding has passed. > When I use the term "named graph", I am intentionally being ambiguous. So, in fact there are lots distinct empty "named graphs", since they are empty g-snap containers. I may have many distinct names for the same (immutable) g-snap, regardless of the number of triples contained therein, 0 or more. I may have many distinctly named (mutable) g-boxes, which may all each contain the same g-snap (whether that is "the" empty g-snap or otherwise) at some point in time. Ted -- A: Yes. http://www.guckes.net/faq/attribution.html | Q: Are you sure? | | A: Because it reverses the logical flow of conversation. | | | Q: Why is top posting frowned upon? Ted Thibodeau, Jr. // voice +1-781-273-0900 x32 Senior Support & Evangelism // mailto:tthibodeau@openlinksw.com // http://twitter.com/TallTed OpenLink Software, Inc. // http://www.openlinksw.com/ 10 Burlington Mall Road, Suite 265, Burlington MA 01803 Weblog -- http://www.openlinksw.com/blogs/ LinkedIn -- http://www.linkedin.com/company/openlink-software/ Twitter -- http://twitter.com/OpenLink Google+ -- http://plus.google.com/100570109519069333827/ Facebook -- http://www.facebook.com/OpenLinkSoftware Universal Data Access, Integration, and Management Technology Providers
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