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Re: is this valid to make a named graph in RDFa?

From: Ivan Herman <ivan@w3.org>
Date: Wed, 05 Mar 2008 18:55:45 +0100
Message-ID: <47CEDEA1.7060609@w3.org>
To: Golda Velez <gv@btucson.com>
CC: semantic-web@w3.org, ben@adida.net, michael.hausenblas@joanneum.at
Golda,

I must apologize, my mail was not really clear. The issue is not 'id' or 
'name'. In RDFa, you can of course put any valid URI into the @about, 
and that can be a relative URI within the document. The point is: that 
will not generate things like:

#opinion1: #tucsonrodeo08 tdl:Post "the rodeo..."

Ivan

Golda Velez wrote:
> Hm.  Too bad.  What about using the old style 
> 
> 	<A NAME="statement_identifier"> </A>
> 
> to wrap the statement in?  Then
> 
> 	"#statement_identifier"
> 
> is a valid URI by standard addressing rules
> 
> --G
> 
> On Wednesday 05 March 2008 5:47, Ivan Herman wrote:
>> Golda,
>>
>> you ask:
>>
>> [[[
>>   Is the use of RDFa in this way with id= properties functioning as the 
>> name of the assertion valid?
>> ]]]
>>
>> The answer is no:-(. The current RDFa spec:
>>
>> http://www.w3.org/TR/rdfa-syntax
>>
>> does not make any reference to the 'id' attribute. Nor does it include 
>> means to generate named graphs (or reified statements, for that matter)
>>
>> Ivan
>>
>> Golda Velez wrote:
>>> Hello all
>>>
>>> I had a conversation with Eric Neumann of the MIT Simile project, which I 
> left 
>>> with the (possibly erroneous) impression that I could do this:  (if its 
>>> wrong, blame me and not Eric!  We talked in general terms, not this 
> specific)
>>> <html xmlns:cal="http://www.w3.org/202/12/cal/ical#'
>>> 	xmlns:tld="/http://www.eyrie.org/~zednenem/2002/web-threads#>
>>>
>>> <span id="tucsonrodeo08" about="#tucsonrodeo08">	  
>>> 	<span property="cal:summary">
>>> 		bull riding, calf roping, barrel racing and other fun cowboy stuff
>>> 	</span>
>>> 	<span property="cal:dtstart" content="20080222T1300+0200">
>>> 		you missed it - it was Feb 22-25 2008
>>> 	</span>
>>> 	<span id="opinion1" property="tdl:Post">
>>> 		no animals were harmed in this rodeo
>>> 	</span>
>>> </span>
>>>
>>> <span about="#opinion1">
>>> 	<span id="opinion2" property="tdl:discusses">  
>>> 		I was at the rodeo 2/23/08 and did not see any animals harmed, though 
> the 
>>> goat used in the kid section at 2PM was thrown down pretty hard a few 
> times. 
>>> 		<!-- this observation itself could be more structured, but that's not 
> the 
>>> point here -->
>>> 	</span>
>>> </span>
>>>
>>> </html>
>>>
>>> If we use some kind of modified n3 notation is this what we get?  (for the 
>>> discussion part)
>>>
>>> @prefix : <the address of the page containing the above>
>>>
>>> #opinion1: #tucsonrodeo08 tdl:Post "the rodeo..."
>>>
>>> #opinion2: #opinion1 tdl:discusses "I was at..."
>>>
>>> I realize that you could already use TDL notation to have a threaded 
>>> discussion, but it seems to me that by being able to refer precisely to a 
>>> specific RDF statement that then adds the ability to relate this 
> discussion 
>>> to other structured data (the rodeo that occurred on Feb 23 at a specific 
>>> location).  
>>>
>>> The general idea of whether animals are hamed at rodeos can lead to 
> endless 
>>> general discussion. But being able to tie specific instances to the 
>>> discussion in a machine-readable way may make the discussions more useful 
> for 
>>> later analysis of the subject.  This same type of discussions tied to 
>>> specific events and testimony would be useful in the medical field and 
>>> others.  
>>>
>>> Does this make any sense at all?  Is the use of RDFa in this way with id= 
>>> properties functioning as the name of the assertion valid?
>>>
>>> thanks!
>>>
>>> --Golda
>>>
>>>
>>>
>> -- 
>>
>> Ivan Herman, W3C Semantic Web Activity Lead
>> Home: http://www.w3.org/People/Ivan/
>> PGP Key: http://www.ivan-herman.net/pgpkey.html
>> FOAF: http://www.ivan-herman.net/foaf.rdf
>>
> 

-- 

Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
PGP Key: http://www.ivan-herman.net/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf

Received on Wednesday, 5 March 2008 17:55:57 UTC

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