Don’t call me DOM

9 July 2004

GRDDLizer for visited countries

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Having discovered the RDF Vocabulary to describe countries one has visited that Morten had developed and integrated in a WordPress plug-in, and seeing the nice results it gives in the FOAF explorer, I decided I wanted to use it, too.

But I was kind of reluctant to use the WordPress plug-in for this: I don’t want to put too much in my wordpress set up, and generally speaking, I’d rather avoid using too much of the database infrastructure that comes with it. Plus, I already had a list of countries I visited in XHTML on my personal web site, and it didn’t look like a good practice to duplicate that.

8 July 2004


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While I wish there was a continuous effort behind GRDDL, so that we could get more Semantic Web harvesting tools supporting it, I’m still trying to push a little of GRDDL data here and there.

Who’s who at W3C?

The W3C Team is presented in a single page with links to home pages, email addresses, bios, etc. An obvious target for GRDDL-ization!

First step was to make it XHTML instead of HTML 4.01, since GRDDL is only designed to work with XHTML; that was a good occasion to clean up the mark up and use the strict DTD rather than the transitional one.

7 July 2004

A Semantic Web protocol for updates to a knowledge base

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For quite some time now (from our Team-only archives, I find a reference back in September 2002) I have been thinking to deploy the following protocol to update RDF knowledge bases, that takes advantage of RDF mergeability and of the concept of filtering in cwm (the command line tool for Semantic Web operations developed by the SWAD Team at W3C).

The general idea is to allow one to HTTP POST a chunk of RDF to an RDF file on a Web server, and have the RDF chunk added to the file, but with the possibility of filtering who gets to add what type of data. Let’s get a little more in the details…

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Picture of Dominique Hazael-MassieuxDominique Hazaël-Massieux ( is part of the World Wide Web Consortium (W3C) Staff; his interests cover a number of Web technologies, as well as the usage of open source software in a distributed work environment.