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Re: ANN: IPTC releases first draft of the rNews standard for embedding metadata in online news

From: Bernard Vatant <bernard.vatant@mondeca.com>
Date: Wed, 6 Apr 2011 14:55:15 +0200
Message-ID: <BANLkTimUog7wc6JqsHtG5T=FHkpG2QcRvw@mail.gmail.com>
To: Richard Cyganiak <richard@cyganiak.de>
Cc: Michael F Uschold <uschold@gmail.com>, semantic-web@w3.org
I'm with Richard on this

rNews is a functional ontology, which means intended for a functional
purpose : tag news. In this context having Organization, Person and Location
subclasses of rnews:Tag makes perfect sense.
If you declare in your ontology ex:Person  owl:disjointWith rnews:Tag it
means that you don't want to tag news with your instances of ex:Person. So
what? That's what you want. I don't see any problem with that. I'm sure no
big problem would come from something like rnews:Person  rdfs:subClassOf
foaf:Person.
foaf:Person does not make any strong assumption on what a Person is, that's
why it's so easily reused. A rnews:Person is a foaf:Person who happens to be
used for tagging news. Certainly that will make some reasoners crash at some
point if they try to make consistent too many things at a time.
In a more restricted scope of FYN applications, it will be very useful. For
example I have a data base of people using foaf:Person I can scrap rNews to
populate it. I don't care if a rnews:Person is a Tag or not, but am happy to
identify a foaf:Person when I meet her in the news.

Interpret what makes sense to you, ignore the rest.

Best

Bernard

2011/4/6 Richard Cyganiak <richard@cyganiak.de>

> Hi Michael,
>
> On 6 Apr 2011, at 03:48, Michael F Uschold wrote:
> > I had a look at the ontology and discovered that a) it does not load into
> Protégé 4.1.  and b)    An organization and a location and a person are all
> tags.  This seems likely to cause semantic problems if you want to
> interoperate with any other data out there.
> > For example, someone is likely to say
> http://iptc.org/std/rNews/2011-02-02#Organization is owl:sameAs the URI
> for organization from say DBpedia or the CIA World Fact Book.  Now all these
> are going to be inferred to be of type
> http://iptc.org/std/rNews/2011-02-02#Tag.   This will give an inconsistent
> ontology when someone does the sensible things and says a location and an
> person are disjoint from tags.
> >
> > A tag is an informational indexing thing. An organization is a legal
> entity, a location is something else again.
>
> And I thought a tag is a small, flat, metal thing on a dog collar…
>
> rnews:Tag doesn't have to be the same as michael:Tag. That's why we name
> things with URIs.
>
> If it is useful *for some application* to declare rnews:Organization
> owl:equivalentClass ex:Organization in their own local application-specific
> ontology mapping, then ex:Organization and rnews:Tag are not disjoint *in
> that mapping*. That's fine. All mappings are wrong, but some are useful.
>
> The Web will never be globally consistent and you know that.
>
> Best,
> Richard
>
>
>
> >
> > Michael
> >
> >
> > <!-- http://iptc.org/std/rNews/2011-02-02#Organization
> >  -->
> >
> >     <owl:Class rdf:about="#Organization">
> >         <rdfs:subClassOf rdf:resource="#Party"/>
> >     </owl:Class>
> >
> >
> >
> >     <!--
> > http://iptc.org/std/rNews/2011-02-02#Party
> >  -->
> >
> >     <owl:Class rdf:about="#Party">
> >         <rdfs:subClassOf rdf:resource="#Tag"/>
> >     </owl:Class>
> >
> >
> > semantic-web@w3.org
> >
> > ---------- Forwarded message ----------
> > From: Raphaël Troncy <raphael.troncy@eurecom.fr>
> > Date: 2011/4/5
> > Subject: ANN: IPTC releases first draft of the rNews standard for
> embedding metadata in online news
> > To: Semantic Web <semantic-web@w3.org>
> >
> >
> > Dear all,
> >
> > Short Story:
> > ------------
> >  - IPTC has released today the rNews standard draft, see
> http://dev.iptc.org/rNews
> >  - rNews aims at marking news using RDFa. The standard will be compliant
> with NewsMLG2, IPTC’s XML format for multimedia news packages
> >  - IPTC considers incorporating hNews into its set of standards
> >  - rNews will be machine readable, an OWL/RDF version of the vocabulary
> is being cooked
> >
> > IPTC is requesting _NOW_ feedback from the community, via its dedicated
> forum, http://dev.iptc.org/Forum-1. The IPTC will consider any feedback
> posted until 30 April 2011 as input to the final standardization process.
> >
> > Long Story:
> > -----------
> > Publishers large and small struggle to make sure that search engines and
> social media sites find their stories and refer to them appropriately.
> >
> > They want to provide highly targeted adverts while dealing with users who
> are opposed to the privacy implication of sharing the personal data
> necessary to accomplish that.
> >
> > How can they build web pages with news stories where the components of
> the story are machine-readable, as well as human readable? The rich content
> metadata available in a publisher’s internal CMS is often lost, or
> re-engineered in an attempt to optimise search results.
> >
> > The IPTC has taken a step to solving this problem with the release of the
> first draft of the rNews standard in 5 April 2011.
> >
> > The IPTC aims to revamp the process for marking up online news articles
> so that search engines and social networking sites can more successfully
> pull relevant pieces of data from them. IPTC seeks to develop rNews, a
> recently proposed practice for marking news using RDFa, which allows HTML
> authors to tag webpage content with indicators that browsers and tools can
> interpret. The standards will be compliant with NewsMLG2, IPTC’s XML format
> for multimedia news packages.
> >
> > IPTC’s Semantic Web Working Group is leading the charge to craft these
> standards. The group is mapping out the specifications essential to rNews
> for IPTC, and will offer examples of the standards in use, best practices
> for implementation, and online tools to ease the transition to the new
> standards. This work is set to conclude in the summer of 2011, and will
> better enable search engines to cull NewsML-G2 data from the Internet, ready
> for Semantic Web and Linked Data mining technologies.
> >
> > Details of rNews are available at http://dev.iptc.org/rNews.
> >
> > More importantly, what you think about it can be recorded on the public
> rNews forum (http://dev.iptc.org/Forum-1) . The IPTC will consider any
> feedback posted until 30 April 2011 as input to the final standardization
> process.
> >
> > The IPTC considers incorporating hNews, the existing microformat for the
> semantic markup of news content, into its set of standards.
> > At its most basic level, both hNews and rNews are about expressing news
> metadata in HTML.
> > hNews is a microformat using HTML markup conventions, whereas rNews is a
> method to record RDF assertions (triples) within HTML, but keeps
> vocabularies and expression mechanism separate.
> >
> > Best regards.
> >
> >  Raphaël Troncy
> >  on behalf of the IPTC SemWeb working group
> >
> > --
> > Raphaël Troncy
> > EURECOM, Multimedia Communications Department
> > 2229, route des Crêtes, 06560 Sophia Antipolis, France.
> > e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
> > Tel: +33 (0)4 - 9300 8242
> > Fax: +33 (0)4 - 9000 8200
> > Web: http://www.eurecom.fr/~troncy/
> >
> >
> >
> >
> > --
> > Michael Uschold, PhD
> >    Senior Ontology Consultant, Semantic Arts
> >    LinkedIn: http://tr.im/limfu
> >    Skype, Twitter: UscholdM
> >
>
>
>


-- 
Bernard Vatant
Senior Consultant
Vocabulary & Data Engineering
Tel:       +33 (0) 971 488 459
Mail:     bernard.vatant@mondeca.com
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Received on Wednesday, 6 April 2011 12:55:45 GMT

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