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Re: Schema.org in RDF ...

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Sun, 12 Jun 2011 20:39:20 +0100
Message-ID: <4DF515E8.3080403@openlinksw.com>
To: Pat Hayes <phayes@ihmc.us>
CC: public-lod@w3.org
On 6/12/11 8:10 PM, Pat Hayes wrote:
> Kingsley, Im not exactly sure what you are saying in all this, but... (read on)
>
> On Jun 12, 2011, at 9:49 AM, Kingsley Idehen wrote:
>
>> On 6/12/11 3:42 PM, Richard Cyganiak wrote:
>>> On 12 Jun 2011, at 11:12, Alan Ruttenberg wrote:
>>>> I've yet to encounter a person who didn't understand the difference between a book about Obama and Obama.
>>> This has nothing to do with books about Obama.
>>>
>>> It's about the difference between an URI-named resource which can return, say, a JSON representation of Obama; and a URI-named resource that *is* Obama. Explaining why using the same URI for both of those supposedly breaks the Web isn't *quite* that easy.
>>>
>>> Best,
>>> Richard
>>>
>> Richard,
>>
>> It isn't about braking the Web or its AWWW, really. It's about how its always been when dealing with data via programs. An Object has:
>>
>> 1. Name
>> 2. Representation Address
>> 3. Actual Representation.
> It also has 4. Its actual self, ie the object.

Yes it does. I was commenting on the Web Resource specifically, and it 
use as a mechanism for agency via observation subject representation.

As per your comment about self, the whole picture goes something like this:

1. Actual Observation Subject
2. Subject Identifier operating as a Name
3. Medium specific Representation Location (Address)
4. Actual Medium specific Representation.

2-4 collectively deliver agents and agency in a given context such as 
e.g. WWW .

> In the example above, Obama, the living breathing President of the USA. Not a representation or an address of any kind, not accessible by HTML in any way, not a piece of information. Still, can be referred to by a name, and described by a representation. And this is what the whole discussion is about.

And that's what I am responding to:

1. Obama - The human that doesn't exist on the Web in physical form
2. http://dbpedia.org/resource/Barack_Obama -- Name
3. http://dbpedia.org/page/Barack_Obama -- Address of an HTML based 
resource that describes him; you can also get this description in 
alternative formats via:
     -- http://dbpedia.org/data/Barack_Obama.json
     -- http://dbpedia.org/data/Barack_Obama.ntriples
     -- etc..

4. Byte stream I receive when I de-reference the Name: 
http://dbpedia.org/resource/Obama -- actual representation delivered via 
indirection operation .

It isn't as complex and we are making it seem, really. Non Web 
Programmers have worked with de-reference (indirection) and address-of 
operations via operators for a long time en route to crafting very 
sophisticated Linked Data Structures. Courtesy, of TimBL's Linked Data 
meme, graph based Linked Data Structures can now be crafted using 
de-referencable URIs (in the generic sense) with HTTP scheme URIs as a 
cheap albeit unintuitive option.


Kingsley

> Pat
>
>> I can even articulate this using the much overloaded "Resource" term by saying: courtesy of Linked Data tweak (or evolution) Web Resources now has a:
>>
>> 1. Name
>> 2. Representation Address
>> 3. Actual Representation.
>>
>> Prior to the use of Links for structured data representation a Resource had a:
>>
>> 1. Representation Address
>> 2. Actual Representation.
>>
>>
>> It really is as simple as outlined above.
>>
>> HTTP explicitly includes the ability to negotiate Actual Representation via mime types.
>>
>>
>> -- 
>>
>> Regards,
>>
>> Kingsley Idehen	
>> President&   CEO
>> OpenLink Software
>> Web: http://www.openlinksw.com
>> Weblog: http://www.openlinksw.com/blog/~kidehen
>> Twitter/Identi.ca: kidehen
>>
>>
>>
>>
>>
>>
>>
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-- 

Regards,

Kingsley Idehen	
President&  CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
Received on Sunday, 12 June 2011 19:39:45 UTC

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