AKSW Publications on this Year's Leipzig Book Fair

Posted on March 18, 2010 by ThomasRiechert

At this year’s book fair in Leipzig (18/03 – 21/03) two books resulting from current project work of the AKSW research group [1,2] are displayed within the scope of scientific publications from the University of Leipzig. One of the editors, Thomas Riechert, will be present on 19th March from 10 to 12 o’clock at booth G201/H200 (hall 3).

[1] Agiles Requirements Engineering für Softwareprojekte mit einer großen Anzahl verteilter Stakeholder. Sören Auer, Kim Lauenroth, Steffen Lohmann and Thomas Riechert (Eds.),
2009, Leipziger Informatik Verbund (LIV), http://softwiki.de/buch

[2] Catalogus Professorum Lipsiensis – Konzeption, technische Umsetzung und Anwendungen für Professorenkataloge im Semantic Web.
Ulf Morgenstern and Thomas Riechert (Eds.), 2010, Leipziger Informatik Verbund (LIV), http://catalogus-professorum.org/buch

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Semantic Pingback

Posted on March 10, 2010 by Sebastian Tramp

This is an announcement of the technical report as well as three different implementations of Semantic Pingback.

Semantic Pingback tackles the quality, timeliness and coherence as well as direct end user benefits of the emerging Linked Data Web. Semantic Pingback extends the well-known Pingback method, which is a technological cornerstone of the blogosphere.

It is based on the advertising of an RPC service for propagating typed RDF links between Data Web resources. It is downwards compatible with conventional Pingback implementations, thus allowing to connect and interlink resources on the Social Web with resources on the Data Web.

We implemented the Semantic Pingback mechanism in three different scenarios:

  • A Semantic Pingback server and client plugin for OntoWiki
  • A Semantic Pingback server integrated in Triplify, thus supporting the interlinking with relational data on the Data Web.
  • A standalone Semantic Pingback server was implemented in PHP, that can be utilized with arbitrary resources that do not provide a Pingback service themselves.

If you do not want to provide a Pingback service on your own, you can use the AKSW Semantic Pingback Service which notifies you via email.

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Studieninformationstag an der Leipzig School of Media

Posted on March 5, 2010 by Sören Auer

Die Leipzig School of Media bietet vier berufsbegleitende Masterstudiengänge auf Hochschulniveau im Medienbereich an. Darunter auch den vom Insitut für Informatik der Universität Leipzig betreuten Studiengang Content and Media Engineering, der Studenten an aktuelle IT-Entwicklungen wie z.B. semantische Technologien, E-Commerce und Wissensmanagement heranführt. Der Studiengang ist mit einmal monatlich stattfindenden geblockten Lehrveranstaltungen und einer starken Verbindung mit Praxisanwendungen optimal auf berufstätige Studierende abgestimmt.

Am 12. März 2010 sind alle Interessierten ab 15 Uhr herzlich zum Studieninformationstag eingeladen. Dieser findet in Leipzig auf dem Mediencampus (Poetenweg 28, 04155 Leipzig) statt. Neben Informationen zu den Studiengängen sowie Stipendien- und Finanzierungs­möglichkeiten können Interessierte an Lehrveranstaltungen mit renommierten Dozenten aus Wissenschaft und Praxis teilnehmen.

Die Teilnahme und das anschließende Get together mit Speisen und Getränken ist kostenfrei. Interessierte werden gebeten sich auf der Webseite der School of Media anzumelden. Die Anreise- und Ãœbernachtungskosten werden Besuchern des Informationstags erstattet, die zum Wintersemester ein Studium an der Leipzig School of Media beginnen.

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Protégé DL-Learner plugin 0.6

Posted on March 3, 2010 by Jens Lehmann

Today, we released a major update of the DL-Learner plugin for Protege 4, the popular ontology editor. The plugin allows you to get suggestions for axioms you may want to add to your OWL ontology by analysing the instance data using the DL-Learner framework. A screencast is available to show you how it works. The plugin is installable via the standard Protégé plugin mechanism (Protege 4 stable release required). This version allows to fine tune the language features you want to use and displays the length of expressions, which have been searched. It also fixes bugs related to inconsistency handling. More information can be found on the plugin wiki page. Enjoy!

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2nd Leipzig Semantic Web Day on 6th May

Posted on February 5, 2010 by Sören Auer

After the great success of the first Leipziger Semantic Web Tag (LSWT) in 2009 AKSW is organizing another installment of this event on 6th May. In addition to demonstrating the benefits of semantic technologies to enterprises, this year’s LSWT focuses on Open Data in science and E-government. A particular highlight will be the festive announcement of the German chapter of the Open Knowledge Foundation. More information on the LSWT can be found (in German) at: http://aksw.org/Events/2010/LeipzigerSemanticWebDay.

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Doctoral and PostDoc positions available at AKSW

Posted on February 3, 2010 by Sören Auer

For collaborative research projects in the area of Linked Data technologies and Semantic Web the research group Agile Knowledge Engineering and Semantic Web (AKSW) at Universität Leipzig opens positions for one postdoctoral researcher and 2 doctoral students. The complete job offers are available at: http://aksw.org/Jobs

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Adaptive SPARQL Query Cache

Posted on January 25, 2010 by Sören Auer

AKSW is pleased to announce the first availability of our Adaptive SPARQL Query Cache, a light-weight SPARQL proxy for caching query results and selectively invalidating stored results upon updates. SPARQL-backed applications can be accelerated by simply routing all SPARQL and SPARUL queries through the proxy. In scenarios with recurring query patterns the caching increases responsiveness and overall performance as we validated with an adapted version of the BSBM benchmark. The caching and invalidation was implemented in Java and in PHP and is available together with additional documentation from:

http://aksw.org/Projects/QueryCache

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LESS – Content Syndication based on Linked Data

Posted on January 20, 2010 by Sören Auer

We’ve announced LESS today – an end-to-end approach for the syndication and use of linked data based on the definition of visualization templates for linked data resources and SPARQL query results.

Such syndication templates are edited, published and shared by using LESS’ collaborative Web platform. Templates for common types of entities can then be combined with specific, linked data resources or SPARQL query results and integrated into a wide range of applications, such as personal homepages, blogs/wikis, mobile widgets etc.

LESS and further information and documentation can be found at:

http://less.aksw.org

Particular thanks go to Raphael Doering (Netresearch) who performed most of the development work and to Sebastian Dietzold (AKSW) for contributing in various ways.

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Open Knowledge Conference 2010

Posted on December 9, 2009 by Sören Auer

OKCon, now in its fifth year, is the interdisciplinary conference that brings together individuals from across the open knowledge spectrum for a day of presentations and workshops.

Open knowledge promises significant social and economic benefits in a wide range of areas from governance to science, from culture to technology. Opening up access to content and data can radically increase access and reuse; improving transparency, fostering innovation and increasing societal welfare.

In addition to high-profile initiatives such as Wikipedia, OpenStreetMap and the Human Genome Project, there is enormous growth among open knowledge projects and communities at all levels. Moreover, in the last year, many governments across the world began to open up their data.

And it doesn’t stop there. In academia, open access to both publications and data has been gathering momentum, and similar calls to open up learning materials have been heard in education. Furthermore, this gathering flood of open data and content is the creator and driver of massive technological change. How can we make this data available, how can we interlink it, how can we use it to collaborate and share our work?

  • where: London, UK
  • when: Saturday 24th April, 2010
  • www: http://www.okfn.org/okcon/
  • cfp: http://www.okfn.org/okcon/cfp/ (deadline: Jan 31st 2010)
  • hashtag: #okcon2010
Posted in Cofundos, dbpedia, DL-Learner, Erfurt, Events, LDAP 2 SPARQL, Linked Geo Data, OntoWiki, SoftWiki, Triplify, xOperator | Leave a comment

DBpedia in ReadWriteWeb's Top 10 Semantic Web Products of 2009

Posted on December 9, 2009 by Sören Auer

The new year is slowly approaching and people start compiling their top x lists of 2009, with x usually ranging between 10 and 365. 😉

The popular Web technology blog ReadWriteWeb has chosen x with value 10 and picked DBpedia as one of their top Semantic Web products of 2009. Its actually the only non-commercial community project in the list and in good company with products such as Google’s Search Options and Rich Snippets, Apperture and Data.gov. Other picks, which btw. heavily use or link to DBpedia, include OpenCalais, Freebase, BBC Music and Zemanta.

Read the full article at http://www.readwriteweb.com/archives/top_10_semantic_web_products_of_2009.php

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