OPDW-ONE: First OntoWiki Plugin Developer Workshop

Posted on February 21, 2008 by Sebastian Tramp

When & Where?

Next week (27.02.2008) we arrange the first OntoWiki Plugin Developer Workshop (OPDW-ONE 🙂 ) at the IfI / University of Leipzig (room 5-10 3-36).

Group of Participants

  • OntoWiki Core Team: Christoph Riess, Michael Haschke, Norman Heino, Philipp Frischmuth, Sebastian Dietzold
  • Plugin Developer: Ceriel Jacobs (vakantieland.nl), Deniz Dalli (Interactive Systems), Martin Peklo, Maria Moritz, Michael Martin, Leszek Kotas, Thomas Kappel, Rolland Brunec

Program

Deliverables after the Workshop

  • Plugin development cookbook for common plugin problems
  • Example plugin which uses most tricks of the plugin development cookbook
  • Screencast of the team programming session (maybe)

The workshop language is german. If you are interested in participation or want your own OntoWiki workshop drop a note to me.

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xOperator 0.1 released

Posted on February 20, 2008 by Sebastian Tramp

xOperator combines advantages of social network websites with instant messaging. It tries to be a semantic agent for xmpp / jabber network which finds and shares content about resources (using RDF/SPARQL) for you and your jabber friends.

The first public version of xOperator is now available for dowload. It includes the following features:

  • basic xmpp account management (user account, proxy account)
  • management of query templates, datastores and namespaces directly with your jabber client
  • simple query templates for easy starting with xOperator
  • query scripts in groovy for advanced queries and post processing

Links: Homepage, Changelog, Mailing list

Posted in DSSN, Software Releases, xOperator | 1 Comment

DL-Learner Build 2008-02-18 released

Posted on February 18, 2008 by Jens Lehmann

Hereby, we announce the availability of DL-Learner Build 2008-02-18, the second DL-Learner release. DL-Learner is a tool for learning complex classes from examples and background knowledge. It extends Inductive Logic Programming to Description Logics and the Semantic Web.

Downloads are available at the sf.net project page. For a list of the most important changes since the last release (Build 2007-08-31), see the Changelog. Most notably, DL-Learner now has a flexible component based design, which allows to extend it easily with new learning algorithms, learning problems, reasoners, and supported background knowledge sources. A new type of supported knowledge sources are SPARQL endpoints, from which DL-Learner can extract knowledge fragments, which enables learning classes even on large knowledge sources like DBpedia. Furthermore, DL-Learner now supports learning from positive examples only, inclusion axiom learning, the usage of N-Triple files as background knowledge, the OWL API reasoner interface, and has a more powerful web service interface. I’d like to thank Sebastian Hellmann, Sebastian Knappe, and Tilo Hielscher for their support.

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4th ESWC Workshop on Scripting for the Semantic Web

Posted on February 15, 2008 by Sören Auer

As already during the last 4 years we again organize this year a workshop on Scripting for the Semantic Web, co-located on June 1st with European Semantic Web Conference in Tenerife, Spain. Scripting languages as PHP, JavaScript, Ruby etc. will play a crucial role for getting the Semantic Web out on a large scale and most of the really deployed Semantic Web applications (e.g. Semantic MediaWiki, DBpedia, Tabulator etc.) are implemented in scripting languages. The deadline for submitting papers to the workshop is March 7th. The workshop will also include a challenge, which awards an (iPod or the equivalent in cash) to the most promising lightweight Semantic Web Application developed in a scripting language. Details can be found at: http://www.semanticscripting.org/SFSW2008

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DBpedia 3.0 Release

Posted on February 9, 2008 by Jens Lehmann

Hereby, we announce the availability of the DBpedia 3.0 final release. Most notably, multi-language support was improved, new linked data sets added, and extraction code improved. Compared to the 3.0 release candidate, a number of extraction framework and data set bugs reported at our sourceforge.net bug tracker were fixed.

Overall, the combined download size of all provided NT and CSV files is 5,0 GB (uncompressed: 48,1 GB). The available data sets contain 92M triples (excluding 126M triples for internal Wikipedia links). DBpedia’s coverage grows to 2.4M entities for the English edition in this release, thanks to the hard-working Wikipedia contributors.

The extraction was performed on a server of our research group. I would like to thank Jörg Schüppel, Sören Auer, Chris Bizer, Richard Cyganiak, Georgi Kobilarov, the OpenLink team, and many other contributors for their DBpedia support.

DBpedia 3.0 Downloads | DBpedia 3.0 Changelog

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OntoWiki Eyetracking

Posted on February 3, 2008 by Sebastian Tramp


OntoWiki Eyetracking Screenshot

Yesterday, Steffen Lohmann from the Interactive Systems Working Group at the University of Duisburg-Essen has surprised me with very nice eyetracking images from an OntoWiki 0.7.1 session last year which was arranged in the scope of the SoftWiki project.

We will meet in Duisburg this march and repeat the experiment with the OntoWiki theme which was introduced in 0.8. The results can lead to more GUI enhancements in the OntoWiki default theme and of course I’m looking forward to play around with this very cool technology! 🙂

Posted in OntoWiki | 1 Comment

Open Source Meets Business 2008

Posted on January 22, 2008 by Sebastian Tramp

Today, Sören presents OntoWiki at the Open Source Meets Business conference (22. – 24. Januar 2008 in Nürnberg). In preparation for this talk, I’ve prepared a new screencast, which showcases an OntoWiki demo session, which is interrupted by some explanatory bubbles …

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Interview regarding Cofundos.org

Posted on January 8, 2008 by Sören Auer

The Semantic Web School just published an interview with Cofundos founder Sören Auer on Cofundos and the vision of participatory R&D. Read the interview here.

Posted in Cofundos, Projects | Leave a comment

Pingback Test

Posted on January 1, 2008 by Philipp Frischmuth

ttt

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Embed Cofundos.org into your Website

Posted on December 2, 2007 by Sören Auer

We released a kiosk modus for Cofundos today, which allows to embed the complete Cofundos.org functionality into your Web site.

This is realized by defining an HTML template which should be used for the kiosk and one (or multiple tags) of projects to be shown in the kiosk. The kiosk will be reachable via its own address (e.g. kioskname.cofundos.org). Once signed in, you can create a kiosk for your website at http://cofundos.org/kiosk.php.

The new Cofundos kiosk mode allows for example open-source projects to seamlessly integrate Cofundos functionality into their Web sites.

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