Re: Linked Data and Semantic Web CoolURIs, 303 redirects and Page Rank.

On 7/23/14 12:17 PM, john.walker wrote:
> Hi Kingsley,
> In the case that Michael describes, could one reasonably expect that 
> if the BBC were to embed the following triples as RDFa in the HTML 
> served on the URL http://www.bbc.co.uk/programmes/b006mw1h, then a 
> webcrawler would understand to go directly to the webpages about the 
> seasons and episodes?

Absolutely!!

They could even use the following within <head/> :

1. <link @rel="{relation-or-predicate-identifier}" 
href="{relation-object}" ../> -- indicating that the doc in question is 
the subject of a relation denoted by {relation-or-predicate-identifier}

2. <link @rev="{relation-or-predicate-identifier}" 
href="{relation-subject}" ../> -- indicating that the doc in question is 
the object of a relation denoted by {relation-or-predicate-identifier} .

Even up the ante, for smart HTTP user agents by replicating the 
relations above using "Link:" response headers.

And to make your example live, I am tweaking your Turtle Snippet (aka. 
Nanotation) which will produce some interesting results. Note, my only 
change is a Nanotation parser hint i.e., ## Turtle Start ## and ## 
Turtle End ##  :-)

## Turtle Start ##
@prefix schema: <http://schema.org/>.
<http://www.bbc.co.uk/programmes/b006mw1h> a schema:WebPage ;
   schema:about <http://www.bbc.co.uk/programmes/b006mw1h/thing> .
<http://www.bbc.co.uk/programmes/b006mw1h/thing> a schema:TVSeries ;
   schema:name "Gardeners' World" ;
   schema:season <http://www.bbc.co.uk/programmes/p00fx55j/thing> , 
<http://www.bbc.co.uk/programmes/p00fx5b7/thing> ;
   schema:episode <http://www.bbc.co.uk/programmes/b049fnfd/thing> .
<http://www.bbc.co.uk/programmes/p00fx55j> a schema:WebPage ;
   schema:about <http://www.bbc.co.uk/programmes/p00fx55j/thing> .
<http://www.bbc.co.uk/programmes/p00fx5b7> a schema:WebPage ;
   schema:about <http://www.bbc.co.uk/programmes/p00fx5b7/thing> .
<http://www.bbc.co.uk/programmes/b049fnfd> a schema:WebPage ;
   schema:about <http://www.bbc.co.uk/programmes/b049fnfd/thing> .
## Turtle End ##

> ## start Turtle
> @prefix schema: <http://schema.org/>.
> <http://www.bbc.co.uk/programmes/b006mw1h> a schema:WebPage ;
>   schema:about <http://www.bbc.co.uk/programmes/b006mw1h/thing> .
> <http://www.bbc.co.uk/programmes/b006mw1h/thing> a schema:TVSeries ;
>   schema:name "Gardeners' World" ;
>   schema:season <http://www.bbc.co.uk/programmes/p00fx55j/thing> , 
> <http://www.bbc.co.uk/programmes/p00fx5b7/thing> ;
>   schema:episode <http://www.bbc.co.uk/programmes/b049fnfd/thing> .
> <http://www.bbc.co.uk/programmes/p00fx55j> a schema:WebPage ;
>   schema:about <http://www.bbc.co.uk/programmes/p00fx55j/thing> .
> <http://www.bbc.co.uk/programmes/p00fx5b7> a schema:WebPage ;
>   schema:about <http://www.bbc.co.uk/programmes/p00fx5b7/thing> .
> <http://www.bbc.co.uk/programmes/b049fnfd> a schema:WebPage ;
>   schema:about <http://www.bbc.co.uk/programmes/b049fnfd/thing> .
> ## end Turtle
> I guess, as Michael mentions, having the webpages as the href targets 
> in the HTML effectively shortcuts that indirect relation.
> Cheers,
> John
>
> > On July 23, 2014 at 5:23 PM Kingsley Idehen <kidehen@openlinksw.com> 
> wrote:
> >
> >
> > On 7/23/14 10:50 AM, john.walker wrote:
> > > Hi Michael,
> > > Hope the laptop is ok :)
> > > So I can think of your 'slash' NIR URI as something similar to a URN:
> > > http://www.bbc.co.uk/programmes/b006mw1h/thing
> > > It doesn't do much on it's own and *just* acts as an identifier.
> > > Using HTTP it can be resolved to a URL via the 303, kind of 
> similar to
> > > a URN resolver.
> > > Could you explain what you mean by "conneg penalty"?
> > > I've set up an application working with 303s and, although I don't
> > > consider myself mad, it does add an extra request to every click the
> > > user does.
> > > Getting the 303 response takes 20 - 25 ms on average, so it's not a
> > > big issue in this case (internal company usage).
> > > Interestingly enough I just checked a random shortened link off
> > > Twitter and it went through no less than 5 HTTP 301/302 redirects 
> (500
> > > ms in total) before getting the HTML.
> > > Taking that into consideration a single 303 is not too bad!
> > > Regards,
> > >
> > > John Walker
> >
> > SeeAlso, the output of our variant of Vapour that illustrates entity
> > denotation and connotation via HTTP URIs [1] .
> >
> > Basically, SEO should be targeting the entity denoted by the URI
> > <http://dbpedia.org/page/Linked_data> since that URI denotes a 
> Document.
> > The document in comprised of RDF content where format is negotiable.
> >
> > Links:
> >
> > [1] http://bit.ly/entity-denotation-and-connotaton -- Vapour
> > deconstruction of HTTP URIs that denote and connote entities of
> > different types .
> >
> > [2] http://lists.w3.org/Archives/Public/public-lod/2014Jul/0085.html --
> > related thread on this forum.
> >
> > --
> > Regards,
> >
> > Kingsley Idehen
> > Founder & CEO
> > OpenLink Software
> > Company Web: http://www.openlinksw.com
> > Personal Weblog 1: http://kidehen.blogspot.com
> > Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen
> > Twitter Profile: https://twitter.com/kidehen
> > Google+ Profile: https://plus.google.com/+KingsleyIdehen/about
> > LinkedIn Profile: http://www.linkedin.com/in/kidehen
> > Personal WebID: 
> http://kingsley.idehen.net/dataspace/person/kidehen#this
> >
> >


-- 
Regards,

Kingsley Idehen 
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog 1: http://kidehen.blogspot.com
Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen
Twitter Profile: https://twitter.com/kidehen
Google+ Profile: https://plus.google.com/+KingsleyIdehen/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen
Personal WebID: http://kingsley.idehen.net/dataspace/person/kidehen#this