- From: Enrico Franconi <franconi@inf.unibz.it>
- Date: Sun, 26 Mar 2006 14:57:37 +0200
- To: Dan Connolly <connolly@w3.org>
- Cc: "Peter F.Patel-Schneider" <pfps@research.bell-labs.com>, public-rdf-dawg-comments@w3.org
- Message-Id: <A640D38C-19C5-4B46-A09E-B33EFCF6FFDD@inf.unibz.it>
On 22 Mar 2006, at 18:19, Dan Connolly wrote: >>>> From section 2.5.2: >>>> >>>> "A pattern solution can then be defined as follows: to match a >>>> basic >>>> graph pattern under simple entailment, it is possible to proceed by >>>> finding a mapping from blank nodes and variables in the basic graph >>>> pattern to terms in the graph being matched; a pattern solution is >>>> then a mapping restricted to just the variables, possibly with >>>> blank >>>> nodes renamed. Moreover, a uniqueness property guarantees the >>>> interoperability between SPARQL systems: given a graph and a basic >>>> graph pattern, the set of all the pattern solutions is unique up to >>>> blank node renaming." >>> >>> This is a claim, not a theorem (with proof). >> >> Sure :-) >> Stay tuned for the explicit proof. > > Enrico, you do not mean to imply that the RDF Data Access Working > Group > plans to deliver a proof, do you? I'm not aware of any such plans. > > Please keep in mind that this public-rdf-dawg-comments@w3.org mailing > list is a place for responses on behalf of the RDF Data Access Working > Group; it's best to be very clear when you're acting not on behalf > of the WG but on your own behalf, lest readers get the wrong > impression. I personally believe that whatever I write, or subscribe to, should be provably correct - as a general rule of my public working life. That's also why I believe that it is a terrible mistake pretending from a body meant to produce standards (like the W3C-DAWG) to do novel research, and to pretend to standardise the outcome of such research. In fact, the mechanisms of a body whose purpose is to produce standards are about creating consensus by means of votes, or by means of 'empirical' evidence (the infamous test-cases), to reach a "standard" (or recommendation or whatever). These mechanisms are clearly inadequate for the kind of job that eventually the DAWG undertook, and I am surprised - among other things - that the W3C didn't realise this yet. I am also shocked that the members of the WG didn't ask for a proof earlier, and that they are ready to subscribe something of which they don't have (apparently) a clear evidence. --e.
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Received on Sunday, 26 March 2006 12:57:59 UTC