Category Archives: RDFa

Easier in RDFa: multiple types and the influence of syntax on semantics

RDF is defined as an abstract data model, plus a collection of practical notations for exchanging RDF descriptions (eg. RDF/XML, RDFa, Turtle/N3). In theory, your data modelling activities are conducted in splendid isolation from the sleazy details of each syntax. RDF vocabularies define classes of thing, and various types of property/relationship that link those things. [...]

WOT in RDFa?

(This post is written in RDFa…) To the best of my knowledge, Ludovic Hirlimann‘s PGP fingerprint is 6EFBD26FC7A212B2E093 B9E868F358F6C139647C. You might also be interested in his photos on flickr, or his workplace, Mozilla Messaging. The GPG key details were checked over a Skype video call with me, Ludo and Kaare A. Larsen. This blog post [...]

My ’70s Schoolin’ (in RDFa)

I went to Hamsey Green school in the 1970s. Looking in the UK Govt datasets, I see it is listed there with a homepage of ‘http://www.hamsey-green-infant.surrey.sch.uk’ (which doesn’t seem to work). Some queries I’m trying via the SPARQL dataset (I’ll update this post if I make them work…) First a general query, from which I [...]

WordPress trust syndication revisited: F2F plugin

This is a followup to my Syndicating trust? Mediawiki, WordPress and OpenID post. I now have a simple implementation that exports data from WordPress: the F2F plugin. Also some experiments with consuming aggregates of this information from multiple sources. FOAF has always had a bias towards describing social things that are shown rather than merely [...]

WordPress, TinyMCE and RDFa editors

I’m writing this in WordPress’s ‘Visual’ mode WYSIWYG HTML editor, and thinking “how could it be improved to support RDFa?” Well let’s think. Humm. In RDFa, every section of text is always ‘about’ something, and then has typed links or properties associated with that thing. So there are icons ‘B’ for bold, ‘I’ for italics, [...]

Syndicating trust? Mediawiki, WordPress and OpenID

Fancy title but simple code. A periodic update script is setting user/group membership rules on the FOAF wiki based on a list of trusted (for this purpose) OpenIDs exported from a nearby blog. If you’ve commented on the blog using OpenID and it was accepted, this means you can also perform some admin actions (page [...]

Drupal social/data Web developments

Dries Buytaert  on ‘Drupal, the Semantic Web, and search’. Discusses RDFa, SearchMonkey and more. Great stuff! Excerpt: This kind of technology is not limited to global search. On a social networking site built with Drupal, it opens up the possibility to do all sorts of deep social searches – searching by types and levels of [...]