The AKSW research group is pleased to announce that OntoWiki 0.9.5 is now available for download.

OntoWiki is a web-application enabling the collaborative creation and (linked data) publication of RDF knowledge bases.

More information about OntoWiki can be found at http://ontowiki.net. You can download OntoWiki in our google code file section.

Enhancements in this release include:

• Support for Semantic Pingback, a protocol which enables OntoWiki to communicate named links from linked data resources or blog systems like WordPress.
• Support for the publication of provenance information via Linked Data.
• A new navigation module which support the configuration and usage of arbitrary navigation hierarchies (e.g. based on classes, SKOS elements, geospatial entities or FOAF groups).
• A bookmarklet for collecting RDFa-based information into a specific OntoWiki knowledge base.
• More editing widgets, e.g. for phone number and mailto: resources.
• A new mapping module for the resource visualisation and filtering based on maps.
• Attribute / Tag clouds based on selected RDF properties.
• A GUI for complex SPARQL filter (contains, larger, smaller, between and bound)
• A JSON/RPC server as an additional interface (e.g. for the command line client)
• A plugin to create nice URIs based on the content of a new resource.

A detailed log of the over 200 enhancements and bug fixes of this release is available at our issue tracker.

Many thanks to the contributors of this OntoWiki release (in alphabetical order): Atanas Alexandrov, Christian Maier, Christoph Riess, Jonas Brekle, Marvin Frommhold, Michael Haschke, Michael Martin, Michael Niederstätter, Natanael Arndt, Norman Heino, Philipp Frischmuth and Tim Ermilov

best regards

Sebastian Tramp

We’ve released the third version of our OntoWiki Command Line Interface (owcli). owcli is a php-based command line tool to administrate and manipulate OntoWiki Knowledge Bases. The release is a complete remake as an JSON/RPC client in order are save for future extensions at the OntoWiki RPC server base. owcli can be downloaded at the google code download page and is featured in detail at this wiki page.

From this summer term onwards the Faculty of Mathematics and Computer Science at Leipzig University provides structured information about academia such aslectures, tutors, rooms and timetables as Linked Open Data. The platform http://od.fmi.uni-leipzig.de, which is based on the OntoWiki framework, provides a vocabulary and an ontology. Apart from the possibility of the direct linking of resources in the semantic web, this platformn offers a SPARQL endpoint. The accessible information provides a basis for the integration into E-Learning platforms or personal knowledge management applications.

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

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.