General SIOC discussions.

State of the SIOC-o-sphere (#5)

It's that random time of the year again where I summarise what's been going on in the world of SIOC...

SIOC is a W3C Submission

I am happy to announce that SIOC is now a W3C Member Submission, as mentioned today on the W3C SW blog.

The SIOC Ontology Submission is composed of:

  1. SIOC Core Ontology Specification
  2. SIOC Ontology: Applications and Implementation Status
  3. SIOC Ontology: Related Ontologies and RDF Vocabularies
  4. Snapshots of Namespace Documents

Thanks to Uldis for all his work, and to all our authors, contributors and supporters! More information about SIOC is available from Our SIOC work in DERI, NUI Galway is funded by Science Foundation Ireland.

SIOC Crawler for RDF Data

SIOC Crawler:

State of the SIOC-o-sphere (#4)

Since my last SIOC update in November, here are some of the latest happenings from the SIOC-o-sphere:

SIOC Publications

  • J.G. Breslin, S. Decker, "The Future of Social Networks on the Internet: The Need for Semantics ", IEEE Internet Computing magazine, November 2007.
  • S. Fernández, D. Berrueta, J.E. Labra, "A semantic web approach to publish and consume mailing lists", IADIS International Journal on WWW/Internet (to appear).
  • M. Hausenblas, H. Rehatschek, "mle: Enhancing the Exploration of Mailing List Archives Through Making Semantics Explicit", Semantic Web Challenge 2007, 6th International Semantic Web Conference (ISWC2007), Busan, Korea, November 11-15, 2007.
  • B Heitmann, E Oren, "Leveraging existing Web frameworks for a SIOC explorer to browse online so cial communities", Proceedings of 3rd workshop on Scripting for the Semantic Web (SFSW2007), ISSN 1613-0073, Innsbruck, Austria, June 6, 2007.
  • S. Fernández, D. Berrueta, J.E. Labra, "Mailing lists meet the Semantic Web", Proceedings of workshop on Social Aspects of the Web (SAW 2007), ISBN 83-916842-4-2, pp. 45-52, Poznan, Poland, April 27, 2007.
  • U Bojars, J Breslin, A Passant , "SIOC Browser-Towards A Richer Blog Browsing Experience", Proceedings of 4th Blogtalk Conference (Blogtalk Reloaded), Vienna, Austria, 2006.
  • J.G. Breslin, A. Harth, U. Bojars, S. Decker, "Towards Semantically-Interlinked Online Communities", Proceedings of the 2nd European Semantic Web Conference (ESWC '05), LNCS vol. 3532, pp. 500-514, Heraklion, Greece, 2005.
    [SpringerLink] [PDF]
  • J.G. Breslin, S. Decker, A. Harth, "An Approach to Connect Web-Based Communities", Proceedings of the 2nd IADIS International Conference on Web Based Communities (WBC 2005), pp. 272-275, Carvoeiro, Portugal, 2005.
  • A. Harth, J.G. Breslin, I. O'Murchu, S. Decker, "Linking Semantically-Enabled Online Community Sites", Proceedings of the 1st Workshop on Friend of a Friend, Social Networking and the (Semantic) Web (FOAF Galway), Galway, Ireland, pp. 19-29, September 2004.

But probably there are more publications...

Microformats and SIOC

(Copied from here.)

It's been a year since I last took a look at the overlap between the SIOC Project and Microformats (mf). I've been trying to catch up with recent developments, especially the cite-rel draft by Ryan King and Eran Globen.

I admire the Microformats resolve to "solve problems", rather than provide generic things that may in the future be used for X or Y (even though I believe that too is important, or else I wouldn't be a Semantic Web researcher!). I also think that there is no good reason that both the Semantic Web and Microformats communities can't work together (despite arguments like this). There are people on both sides who strongly feel that the other is going in the wrong direction, but it would be a mistake to let any such voices dominate. Both communities are trying to add semantics in the Web, and using things like GRDDL and Micromodels / mf RDF representations, the existing work from both sides can be reused.

State of the SIOC-o-sphere (number 3)

Since my last "SIOC-o-sphere" summaries (see 1 and 2), there've been quite a few developments!

I'll begin by ripping off Alex Passant's summary from last month...

  • A first version of the API documentation is online. It explains the different classes and methods of the API, which are designed to create SIOC data without any knowledge of SIOC nor RDF.
  • Drupal exporter has been updated. It now exports data according the latest version of the specs (1.08), and is ready for FOAF mappings. There are still adjustements to be done about the FOAF module, but you can apply a patch that can be found and explained here to make it work - you need to install FOAF module for Drupal first of course;
  • Some bugs have also been fixed in b2evo exporter (see SVN) and DotClear one (release 1.4.2 (src | pkg)). As things seems now quite stable in PHP, is there any volunteer for coding Perl or RoR exporters for SIOC ?
  • SIOC export in ODS is now compliant with SIOC crawler, so it can be crawled and put in any triple-store, as Kingley's one which is now here among other blogs from various engines;
  • John wrote 3 different SIOC pdf guides, and also designed a shema about FOAF / SIOC / SKOS, to help people to get rid of ambiguity between foaf:User and sioc:User;
  • Wikier mentionned on #sioc that SWAML, a project he's involved in to translate mailing lists in RDF, will use SIOC;
  • Finally, SIOC will be exposed at BlogTalk, with a SIOCYourBlog experiment.

And since then there've been more happenings...

SIOC One Page Guides in PDF Format

We've created a series of three one-page summaries for those new to SIOC:

1: Executive Summary

2: User's Guide

3: Developer's Guide


What is the vision for SIOC?

  • To create an ontology that fully describes the content and structure of most online community sites - including not limited to weblogs, bulletin boards, mailing lists, newsgroups, etc.
  • To create new connections between discussion channels and posts, and to allow users to browse discussion data in interesting ways using these connections.
  • To overcome a "chicken-and-egg" problem with the Semantic Web (no applications without data, and no data without applications) by making it easy to generate and use SIOC data.

SIOC Media

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