semantic web

Just read this article - does anyone know more about this Open Kalaif or is it just a reporter in a hurry with a spelling mistake? Did a google search on drupal.org and nothing turned up . .

FOAF, DC, SIOC, SKOS are famous vocabularies commonly used in the Semantic Web. Many other custom vocabularies exist and are created everyday. Vocabularies play an important role in the Semantic Web as they enable interoperability across various RDF data sources, and are used by RDF publisher and consumers who refer to them in their data.

This is a crude abstract, Basically I wish to know if someone can mentor this project and its feasability with taxanomy ..

                      ABSTRACT

hi,

for a first simple support for RDF export, I'd like to point you to http://blog.aksw.org/2008/triplify-expose-semantics/ and http://triplr.org.
I think a quick generic RDF support for nodes will be easy to add.

I also recommend to keep the current node URI scheme and add support for content negotiation as described in [1]. So, if a client sends the request header "Accept: application/rdf+xml", the server just returns an RDF version of a node, otherwise it will get the ordinary HTML version, possible polished up with RDFa or microformat tags...

Regards,
Andy

Today I talked with Thomas Hochhaltinger from ebSemantics, a project of "Smart Information Systems", an Austrian company that developed MyOntology.org a collaborative ontology designing platform with ontologies for consumer electronics goods.

Hey all,
How many of you know about GRDDL ('griddle')?

If you've seen the acronym around but haven't read the spec, then you are missing out.

In short, it's a W3C recommended way to post links to XSL stylesheets in HTML and XML documents.

Those stylesheets are specifically designed to produce RDF/XML from a target document.

So what, you might say.

Well: these GRDDL transformations can be done for an individual document; or an entire xml namespace / xmdp (microformat) profile.

Last week at Drupalcon in Boston I realised that it's just not possible to apply for a development FP7 (the 7th Framework Program of the European Union) for Drupal. Things are going so fast that any plan would be obsolete before the project could get granted. That's why I think it would be the most interesting to do a proposal for a series of expert meetings throughout Europe that brings together people to discuss their implementation of the semantic web in Drupal, every time followed by a code sprint.

In regards to the Semantic Web developments announced recently about Drupal 7, I have posted a blog entry at SitePoint and also posted to the Linking Open Data mail list.

I'd like to share some quick thoughts on how Drupal Data could be described in RDF. The attached schema represents the mappings between the current Drupal data structure and the proposed RDF Schema, reusing existing ontologies such as Dublin Core, FOAF, SIOC and SKOS.

The green circles represent the Drupal objects (node, revision, user, role, term), with their equivalent RDF class. The rectangles are the values used in Drupal. It's important to differentiate a class from its actual instances (resources) which are each defined by a unique URI, see the examples below. This schema is meant to be simple, incomplete, and to show the main core features.
Comment and Node are 2 different elements in Drupal, they can be combined in the same Class with the recursive property sioc:has_reply (Comment as Node). Node and Revision objects are separate here as they are in the Drupal Data structure, but they could fundamentally be merged as well.

I presented SIOC at DrupalCon Barcelona, and showed how it can be used to describe online communities. The SIOC sioc:Item class which I used here as equivalent of a Node is a broad Class with many sub-types: AddressBook, AnnotationSet, AudioChannel, BookmarkFolder, MailingList, MessageBoard, BlogPost, BoardPost, WikiArticle... See the SIOC Types Module for more details.

Reuters has opened up a web application to streamline the process of generating metadata around content. From their web site at http://opencalais.mashery.com/Overview

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The Calais Web Service