Contd: Relationship between People and Social Network Services

[Kingsley Idehen]

On 4/11/14 3:12 PM, Bernard Vatant wrote:

... according to http://dbpedia.org/data/HTTPRange-14.n3

We already knew it was turtles all the way down, but this is *news*.



Have a great week-end.

[1] https://plus.google.com/+BernardVatant/posts/aRnC6wnZ9J5
--

Thanks to danbri for the pointer discovered in a side discussion about a raging debate (too serious for a Friday evening) [1]

Bernard,





<div itemscope itemtype="http://schema.org/Person";>
<span itemprop="name">Stephen Fry</span>

I've changed the topic from "httpRange-14 is an empty Turtle ..." because the content of this post relates to a thread on the vocab list that I opened under the heading "Relationship between People and Social Network Services". I've also cc'd the list so as to save time re-posting the same content, later on. Dan's example in HTML+Microdata (which by notation choice *inadvertently* blurs visibility of the relation semantics in play) : (<a itemprop="url" href="http://www.stephenfry.com/";>stephenfry.com</a>,

     <a itemprop="sameAs" href="http://twitter.com/stephenfry";>twitter</a>,
<a itemprop="sameAs"
href="http://en.wikipedia.org/wiki/Stephen_Fry";>wikipedia</a>)
</div>


Turtle (with premature @prefix optimization) translation:

@prefix md: <http://www.w3.org/ns/md#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfa: <http://www.w3.org/ns/rdfa#> .
@prefix schema: <http://schema.org/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<> md:item [
       a schema:Person;
       schema:name "Stephen Fry";
       schema:sameAs <http://twitter.com/stephenfry>,
         <http://en.wikipedia.org/wiki/Stephen_Fry>;
       schema:url <http://www.stephenfry.com/>
     ];
   rdfa:usesVocabulary schema: .



<> <http://www.w3.org/ns/md#item> [

Turtle translation (without premature @prefix optimization) which brings the subject, predicate, object sentence/statement structure to the fore, so the function of language (system of signs (denotation), syntax (statement construction), and semantics (meaning of entity relations) has better visibility: <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person>;

       <http://schema.org/name> "Stephen Fry";
       <http://schema.org/sameAs> <http://twitter.com/stephenfry>,
       <http://en.wikipedia.org/wiki/Stephen_Fry>;
       <http://schema.org/url> <http://www.stephenfry.com/>
     ];
<http://www.w3.org/ns/rdfa#usesVocabulary> <http://schema.org/> .




1. Basic Structured Data -- denotation





What does Dan's example demonstrate?

This really simply shows that Schema.org -- and the practices it promotes -- are a useful bridge across: 2. Linked Data -- denotation matters but not to the point of disambiguation and referent meaning lookup via name->address indirection 3. RDF based Linked Data -- denotation and other entity relation semantics (i.e., RDF semantics) matter here when constructing document content. Remember, AWWW is "horses for courses" and "agree to disagree, without malice" compliant, so I confidently claim that these Web technology related endeavors are collectively useful, but on their own, eternally limited. Thus, lets connect these puzzle pieces en route to Web++ The function of a *pronoun* in a sentence or statement. Basically, he doesn't introduce the dreaded "blank node" term, he simply uses its functionality (as he did eons ago with FOAF). Personally, I wouldn't denote a predicate for this relation, in this manner, due to the *equivalence* intuition -- bearing in mind that Schema.org is a useful bridge. Instead, I would look to use something like :referencedBy (or anything else that doesn't have "same" in it). Dan's example makes the following claim, using terms from <http://schema.org/> (a Vocabulary):

Name: "Stephen Fry"
Type: Person

Someone or something has determined the existence of an entity that has the following discernible attributes: referencedBy: <http://twitter.com/stephenfry>, <http://twitter.com/stephenfry>, <http://www.stephenfry.com/> .

--

Regards,

Kingsley Idehen 
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: 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

It even fits into 3 line items that most human beings can understand. The trouble is that we only have 24 hrs in the day, and most human beings are already totally overwhelmed by the data deluge unleashed by the Web, so what do they do, circa. 2014?

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