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Re: What if an URI also is a URL

From: carmen <_@whats-your.name>
Date: Sat, 9 Jun 2007 23:41:17 -0400
To: semantic-web@w3.org
Message-ID: <20070610034117.GA2874@replic.net>

On Sun Jun 10, 2007 at 04:42:20AM +0200, Alan Ruttenberg wrote:
>  Suppose I use http://mdavid.name in some rdf triple. How am I supposed to
>  know whether it refers to the web page or the person.


context. metadata in the <head> portion of the page (or in the HTTP headers) i can infer is talking about the document at http://mdavid.name

for triples inside the document (whether rdfa, or turtle or whatever), i can infer from the predicate. eg <dc:firstname> i can assume its M David's first name, and not the pages. likewise <sioc:visitorCount> is pretty self explanatory. 

i have a special litle portion of my brain devoted to ontological-hair-splitting/cwm/303-redirects. theres a time and a place for utmost unambiguituy, but this place is rather removed from the fuzzy messy world wide web...




> 
>  :alan :cantlocate <http://mdavid.name>
> 
>  Do I mean that e.g. your server is broken, or that I knocked on your door
>  and you weren't there?
> 
>  -Alan
> 
> 
>  On 6/10/07, M. David Peterson <m.david@xmlhacker.com> wrote:
> >
> >
> > On Sat, 09 Jun 2007 07:13:52 -0600, Tim Berners-Lee <timbl@w3.org> wrote:
> >
> > > No. It cannot identify both a document and a person.
> >
> > Tim: Will all due respect... WTF?
> >
> > Wait, hold up.  Let me step back.  I have a *DEEP* admiration and respect
> > for you.  Always have.  As such, I have to step back and realize there is
> > obviously a reason why you have made this statement.  With this in mind,
> >
> > http://mdavid.name
> >
> > At this URI you will find my personal web page.  That web page links to my
> > various blogs and projects that exist on the web.
> >
> > Embedded into this page is an OpenID delegation that specifies "Here's who
> > I am.  Here's where you can go to invoke an authentication process that,
> > when complete, provides reasonable assurance that I am the person who
> > maintains control of that particular URI (mdavid.name) and as such I
> > should be allowed access to perform the various operations I have been
> > given permission to perform on your web site."
> >
> > So we have a web page that represents me.
> >
> > Embedded in that web page is the necessary information for an OpenID
> > authentication service to access the necessary information that allows a
> > web site that supports OpenID to authenticate me as the person who
> > presently maintains control of that domain.
> >
> > Same HTML.  Two different purposes.  Both served.
> >
> > > No. It cannot identify both a document and a person.
> >
> > Why?  Are you suggesting that what I have done -- i.e. used a domain I
> > presently maintain control over to provide information embedded into the
> > same document intended to serve different purposes, and do so quite
> > legitamatelly and successfully -- is in fact, wrong?  If yes, how so?  It
> > works and works well.  Nothing has been broken as a result, and the same
> > URI had identified both a document and a person.
> >
> > Care to ellaborate.
> >
> > --
> > /M:D
> >
> > M. David Peterson
> > http://mdavid.name | http://www.oreillynet.com/pub/au/2354 |
> > http://dev.aol.com/blog/3155
> >
> >
Received on Sunday, 10 June 2007 03:41:27 UTC

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