R: UNESKOS Vocabulary and 2nd SKOS version of UNESCO Thesaurus

Dear Juan,

 

just a couple of notes.

 

1.       Why the word “main” adopted in some property names? I don’t find any rationale for the use of “main” as the concepts do not seem to be “main” at all for the related schemes/collections.

2.       Some properties, more than being targeted at a special domain (e.g. UNESCO), seems plain extensions of the core SKOS, aiming at filling some gaps left by it. However in some cases I feel like these gaps were left by purpose. E.g. the uneskos:contains provides an inverse property for skos:inScheme. Think about a 30.000 concepts thesaurus (for which there exists at least a scheme containing all concepts). If you were using the UNESKOS vocabulary, you surely would try a SPARQL DESCRIBE on this main scheme? ;-)

a.       Use of SPARQL (or -1 expressions in DL) does not strictly require for the presence of named inverse properties for everything. So, why do they exist? Because when you get the description (for example by a DESCRIBE, but not limited to that) of a resource, they can provide nice “resumes” for it. The kind of path you want to realize (see the description of hasMainConcept) can be performed without the strict need of the property. It is up to SKOS browsing tools to allow for that visualization/traversal options.

 

Just my two cents on that,

 

Best regards,

 

Armando

 

Da: Juan Antonio Pastor Sánchez [mailto:pastor@um.es] 
Inviato: mercoledì 16 settembre 2015 02:21
A: public-esw-thes@w3.org
Oggetto: UNESKOS Vocabulary and 2nd SKOS version of UNESCO Thesaurus

 

Dear all,

 

I want to communicate the publication Vocabulary UNESKOS that complements certain aspects of SKOS [1] and ISO-THES [2]. This vocabulary is designed in the context of the proposed UNESKOS, more specifically for the SKOS representation of the UNESCO Thesaurus.

 

The document describing the vocabulary is available at:

* http://skos.um.es/TR/uneskos

 

The RDF vocabulary is available for download and use from the UNESKOS namespace:

* http://purl.org/umu/uneskos# <http://purl.org/umu/uneskos> 

 

Likewise, the 2nd SKOS version of the UNESCO Thesaurus is available at:

* http://skos.um.es/unescothes

Includes following features:

* Persistent and Dereferenceable URIs.
* Turtle and RDF/XML Datasets avalaible for download.
* RDFa markup.
* SPARQL Endpoint.
* Content negotiation avalaible in N3, JSON-LD, etc...

This second version makes use of SKOS, ISO-THES and UNESKOS. Along the coming weeks new features navigation within the HTML version will be added.

 

Please, for any suggestion or correction you can contact me.

 

Best regards,

Juan

 

-- 

Juan Antonio Pastor Sánchez, Ph.D. 
Dep. of Information and Documentation
Faculty of Communication and Documentation
University of Murcia
phone: +34 868 88 7252
http://webs.um.es/pastor
pastor@um.es <mailto:pastor@um.es>