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Re: allow implicitly unbound variables in SPARQL results?

From: Steve Harris <S.W.Harris@ecs.soton.ac.uk>
Date: Thu, 15 Dec 2005 11:31:16 +0000
To: RDF Data Access Working Group <public-rdf-dawg@w3.org>
Message-ID: <20051215113116.GA8448@login.ecs.soton.ac.uk>

On Wed, Dec 14, 2005 at 11:38:47 -0500, Kendall Clark wrote:
> >compromise. (The flippant side of me wants to point out that the  
> >results
> >format would
> >be more efficient if it only used one-letter element names, as well.)
> 
> But not relevantly more efficient, Lee. Jeen's numbers, IIRC, show  
> that option c is 2x more efficient than LC design. How much  
> efficiency gain would one-letter element names buy? I'd be  
> *astonished* if it were more than 10%. No way it's 2x. (Though if you  
> prove me wrong, I will buy you a beer!)

[swh@ereshkegal ~]$ ts-query 'SELECT ?z WHERE {?x ?y ?z}' > foo.xml
[swh@ereshkegal ~]$ ts-query 'SELECT ?z WHERE {?x ?y ?z}' > bar.xml
[swh@ereshkegal ~]$ vi bar.xml
...
[swh@ereshkegal ~]$ wc -c *.xml
17125 /tmp/bar.xml
25774 /tmp/foo.xml
[swh@ereshkegal ~]$ bc
100*42899/25774
166

Is 66% enough for a free beer? ;)

c.f.
http://www.ecs.soton.ac.uk/~swh/1char-el/foo.xml
http://www.ecs.soton.ac.uk/~swh/1char-el/bar.xml

- Steve

PS Just incase theres any doubt, I'm not advocating 1 character element
   names!
Received on Thursday, 15 December 2005 11:31:39 GMT

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