Re: The need for RDF in Linked Data

On 6/17/13 5:26 PM, David Wood wrote:
> Nicely done, Kingsley!  That is an excellent exploration of the 
> boundaries.
>
> Yes, it is RDF (of course), but crappy RDF since the predicates are 
> hardly likely to be reused by others or even mapped via owl:sameAs.
>
> Yes, it is Linked Data, but crappy Linked Data because it doesn't link 
> out to anything.  The bogus Content-Type is something we have (almost) 
> all learned to live with.
>
> Crappy != broken, but it is still crappy ;-)

Amen!

Kingsley
>
> Regards,
> Dave
> --
> http://about.me/david_wood
>
>
>
> On Jun 17, 2013, at 14:17, Kingsley Idehen <kidehen@openlinksw.com 
> <mailto:kidehen@openlinksw.com>> wrote:
>
>> On 6/17/13 1:35 PM, Luca Matteis wrote:
>>> It's number 3 because it's RDF (Turtle) and it's using URIs to 
>>> describe things. And links to other data.
>> Let's put aside the Turtle assumption debate since it (like Media 
>> Type) doesn't have any concrete bearing on this exercise.
>>
>> How about the document denoted by this URI/URL: 
>> <http://kingsley.idehen.net/DAV/home/kidehen/Public/DropBox/Public/Linked%20Data%20Resources/linked-data-rdf-test2.ttl> 
>>
>>
>> Is that an RDF document? If not, is it a Linked Data document? Or is 
>> it neither?
>>
>>
>> Kingsley
>>>
>>> Can you make your point more clearly rather than answering my 
>>> question with other questions?
>>>
>>>
>>> On Mon, Jun 17, 2013 at 7:27 PM, Kingsley Idehen 
>>> <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote:
>>>
>>>     On 6/17/13 1:09 PM, Luca Matteis wrote:
>>>>     What makes it RDF is that you can take the contents of this URL
>>>>     and stick it in any popular RDF parser and it will parse it for
>>>>     you.
>>>>
>>>>     It's still bad quality Linked Data because it's missing
>>>>     mime-types. Anyway back to my initial question "How do you
>>>>     produce Linked Data without RDF?"
>>>
>>>     To cleanup this experiment, here's a URI/URL that denotes a
>>>     version of the file (note: there where some errors in the
>>>     initial document e.g. "." where I meant to have ";") on my server:
>>>
>>>     <http://kingsley.idehen.net/DAV/home/kidehen/Public/DropBox/Public/Linked%20Data%20Resources/linked-data-rdf-test.ttl>
>>>     <http://kingsley.idehen.net/DAV/home/kidehen/Public/DropBox/Public/Linked%20Data%20Resources/linked-data-rdf-test.ttl>
>>>     .
>>>
>>>     You can also just copy and past the content to your document to
>>>     yours.
>>>
>>>     Back to the question and exercise, what's the defining
>>>     characteristic that makes either of our documents  (denoted by
>>>     their respective URI/URLs) RDF documents, specifically? Here are
>>>     some document type options to select from:
>>>
>>>     1. Structured Data
>>>     2. Structured Data adhering to Linked Data principles
>>>     3. RDF based Structured Data adhering to Linked Data principles.
>>>
>>>
>>>     Note, I am not expecting Media Types to play any role in this
>>>     experiment.
>>>
>>>     Kingsley
>>>>
>>>>
>>>>     On Mon, Jun 17, 2013 at 6:59 PM, Kingsley Idehen
>>>>     <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote:
>>>>
>>>>         On 6/17/13 12:51 PM, Luca Matteis wrote:
>>>>>         Done: http://codepad.org/7REcSynR/raw.txt
>>>>>
>>>>>         That's still RDF so I don't get your point.
>>>>
>>>>         Really? How?
>>>>
>>>>         curl -I http://codepad.org/7REcSynR/raw.txt
>>>>
>>>>         HTTP/1.1 200 OK
>>>>         Date: Mon, 17 Jun 2013 16:57:10 GMT
>>>>         Server: Apache
>>>>         Pragma: no-cache
>>>>         Cache-Control: no-cache
>>>>         Content-Disposition: attachment
>>>>         Content-Length: 427
>>>>         Content-Type: text/plain; charset=utf-8
>>>>
>>>>
>>>>         What makes it RDF?
>>>>
>>>>         Related:
>>>>
>>>>         1.
>>>>         http://en.wikipedia.org/wiki/Entity–attribute–value_model
>>>>         <http://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model>
>>>>         -- EAV
>>>>         2. http://bit.ly/YTdz3N - Peter Chen's circa. 1976
>>>>         dissertation that covers unified views of data (note: a
>>>>         simple example of these concepts that even predate the
>>>>         World Wide Web).
>>>>
>>>>         Kingsley
>>>>
>>>>>
>>>>>
>>>>>         On Mon, Jun 17, 2013 at 6:31 PM, Kingsley Idehen
>>>>>         <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>>
>>>>>         wrote:
>>>>>
>>>>>             On 6/17/13 11:02 AM, Luca Matteis wrote:
>>>>>>
>>>>>>             On Mon, Jun 17, 2013 at 3:57 PM, Kingsley Idehen
>>>>>>             <kidehen@openlinksw.com
>>>>>>             <mailto:kidehen@openlinksw.com>> wrote:
>>>>>>
>>>>>>                 Linked Data is also something you can produce,
>>>>>>                 without any knowledge of RDF.
>>>>>>
>>>>>>
>>>>>>             What do you mean "without any knowledge of RDF"? How
>>>>>>             do you produce Linked Data without RDF? Please give
>>>>>>             us an example before making statements on behalf of
>>>>>>             the community.
>>>>>             If you recall (earlier today) I presented you with a
>>>>>             simple exercise which would answer the question you've
>>>>>             posed above, demonstrably.
>>>>>
>>>>>             Here's that I posted:
>>>>>
>>>>>
>>>>>             Webby Structured Data:
>>>>>
>>>>>             Simply copy and paste the following to a Web
>>>>>             accessible location (URL) and then share the URL via a
>>>>>             response to this mail. If you can't then simply let me
>>>>>             know and I'll do that for you.
>>>>>
>>>>>             ## Structured Data Representation using Turtle Notation ##
>>>>>
>>>>>             <>
>>>>>             a <#Document> .
>>>>>             <#mentions> "Linked Data" , "Linked Data", "Semantic
>>>>>             Web", "Inference Reasoning", "Web".
>>>>>             <#comment> "A mailing list post about Linked Data and
>>>>>             RDF".
>>>>>             <#seeAlso> <http://dbpedia.org/resource/Linked_data>
>>>>>             <http://dbpedia.org/resource/Linked_data>,
>>>>>             <http://dbpedia.org/resource/RDF>
>>>>>             <http://dbpedia.org/resource/RDF>,
>>>>>             <http://dbpedia.org/resource/Semantic_Web>
>>>>>             <http://dbpedia.org/resource/Semantic_Web>,
>>>>>             <http://dbpedia.org/resource/World_Wide_Web>
>>>>>             <http://dbpedia.org/resource/World_Wide_Web>
>>>>>
>>>>>             ## End ##
>>>>>
>>>>>             What is the above to you?
>>>>>
>>>>>             1. Webby Structured Data -- constructable using basic
>>>>>             knowledge of Entity Relationship Models e.g. EAV
>>>>>             (Entity-Attribute-Value based structured data
>>>>>             representation)
>>>>>             2. RDF based Structured Data -- i.e., structured data
>>>>>             endowed with machine- and human-comprehensible entity
>>>>>             relationship semantics as defined by RDF (a framework).
>>>>>
>>>>>             Related:
>>>>>
>>>>>             1.
>>>>>             http://en.wikipedia.org/wiki/Entity–attribute–value_model
>>>>>             <http://en.wikipedia.org/wiki/Entity%96attribute%96value_model>
>>>>>             -- EAV
>>>>>             2. http://bit.ly/YTdz3N - Peter Chen's circa. 1976
>>>>>             dissertation that covers unified views of data (note:
>>>>>             a simple example of these concepts that even predate
>>>>>             the World Wide Web).
>>>>>
>>>>>             -- 
>>>>>
>>>>>             Regards,
>>>>>
>>>>>             Kingsley Idehen	
>>>>>             Founder & CEO
>>>>>             OpenLink Software
>>>>>             Company Web:http://www.openlinksw.com  <http://www.openlinksw.com/>
>>>>>             Personal Weblog:http://www.openlinksw.com/blog/~kidehen  <http://www.openlinksw.com/blog/%7Ekidehen>
>>>>>             Twitter/Identi.ca  <http://Identi.ca>  handle: @kidehen
>>>>>             Google+ Profile:https://plus.google.com/112399767740508618350/about
>>>>>             LinkedIn Profile:http://www.linkedin.com/in/kidehen
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>         -- 
>>>>
>>>>         Regards,
>>>>
>>>>         Kingsley Idehen	
>>>>         Founder & CEO
>>>>         OpenLink Software
>>>>         Company Web:http://www.openlinksw.com  <http://www.openlinksw.com/>
>>>>         Personal Weblog:http://www.openlinksw.com/blog/~kidehen  <http://www.openlinksw.com/blog/%7Ekidehen>
>>>>         Twitter/Identi.ca  <http://Identi.ca>  handle: @kidehen
>>>>         Google+ Profile:https://plus.google.com/112399767740508618350/about
>>>>         LinkedIn Profile:http://www.linkedin.com/in/kidehen
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>     -- 
>>>
>>>     Regards,
>>>
>>>     Kingsley Idehen	
>>>     Founder & CEO
>>>     OpenLink Software
>>>     Company Web:http://www.openlinksw.com  <http://www.openlinksw.com/>
>>>     Personal Weblog:http://www.openlinksw.com/blog/~kidehen  <http://www.openlinksw.com/blog/%7Ekidehen>
>>>     Twitter/Identi.ca  <http://Identi.ca>  handle: @kidehen
>>>     Google+ Profile:https://plus.google.com/112399767740508618350/about
>>>     LinkedIn Profile:http://www.linkedin.com/in/kidehen
>>>
>>>
>>>
>>>
>>>
>>
>>
>> -- 
>>
>> Regards,
>>
>> Kingsley Idehen	
>> Founder & CEO
>> OpenLink Software
>> Company Web:http://www.openlinksw.com
>> Personal Weblog:http://www.openlinksw.com/blog/~kidehen
>> Twitter/Identi.ca  <http://Identi.ca>  handle: @kidehen
>> Google+ Profile:https://plus.google.com/112399767740508618350/about
>> LinkedIn Profile:http://www.linkedin.com/in/kidehen
>>
>>
>>
>>
>


-- 

Regards,

Kingsley Idehen	
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile: https://plus.google.com/112399767740508618350/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen

Received on Monday, 17 June 2013 21:35:08 UTC