The 1st version of the LOD2 Stack has been published in September 2011 in the form of an LOD2 Stack demo and the downloadable LOD2 Stack virtual machine image – additional details and the instructions on installing the LOD2 Stack from scratch are available in the How-To-Start document.

Born from the wish to make linking tractable, the Link Discovery Framework for Metric Spaces (LIMES) is tailored towards the time-efficient and lossless discovery of links across knowledge bases. LIMES is an extensible declarative framework that encapsulates manifold algorithms dedicated to the processing of structured data of any sort. Built with extensibility and easy integration in mind, LIMES allows implementing applications that integrate, consume and/or generate Linked Data. Within LOD2, it will be used for discovering links between knowledge bases.

This webinar will be presented by the LOD2 Partner: University of Leipzig (ULEI), Germany.

The LOD2 webinar series is powered by the LOD2 project organised and produced by the Semantic Web Company (Austria). If you are interested in Linked (Open) Data principles and mechanisms, LOD tools & services and concrete use cases that can be realised using LOD then join us in the LOD2 webinar series! The LOD2 team is looking forward to meeting you at the webinar!!

When : 27.03. 2012, 04.00pm – 05.00pm CET
Information & Registration: https://www2.gotomeeting.com/register/369667514

The LOD2 team is looking forward to meeting you at the webinar!!

Today morning, we started the main LOD2 plenary meeting in Vienna. The first half day session, the WebID special interest group discussed about WebID based single sign for the LOD2 stack and authorization. The challenge here is to provide a interoperable authorization layer which describe user, groups / roles and access to different parts of the stack as well as the managed knowledge bases. We agreed on the following short and long-time goals and activities.

WebID registration service

In order to allow users to try out WebID technology, we need to provide an open service for the registration of new WebIDs. Of course we want to work together with the WebID community group here and some member of the LOD2 consortium are already active in this group. Our goal here is to add a new stack package to our repository which allows for registration and management of minimal working WebID profiles including certificate creation. We will run a public service based on this component but users of the stack can decide to host their own service too. Since there are existing tools here we will try integrate rather than to develop.

Stack internal authorization policy

Since one of our integration goals is to provide provenance support for all activities done by users with the different tools from the stack, we need a policy on how to describe and share descriptions on users and user groups with roles access rights on the stack. Something similar is used already by OntoWiki so we decided to take this as a base and look for more requirements from the rest of the stack.

Several deadlines regarding the I-Semantics 2012 are approaching and we would like to give a gentle reminder to all who are thinking about a submission that now would be a good time to start writing

The deadline for research and application papers (8 pages for full papers) is April 13th, 2012. Note that the abstract deadline on April 2nd, 2012 is strict. The full call for papers can be downloaded here.

We would also like to draw you attention to the 5th Linked Data Cup (formerly the triplification challenge). Submission deadline is April 13th, 2012 and the 4 page papers will be included in the ACM proceedings.
Please have a look at the evaluation criteria for the Linked Data Cup. We are hoping that you will find them truly challenging.

We are happy to announce the beta release of RDFaCE-Lite. RDFaCE-Lite is simplified version of RDFaCE (RDFa Content Editor) and is published as a WordPress plugin. RDFaCE-Lite extends the TinyMCE rich text editor to facilitate the authoring of semantic documents. The main features of RDFaCE-Lite are:

• Support of RDFa as well as Microdata (based on Schema.org) formats.
• Support of IPTC rNews 1.0 standard  for  annotating HTML documents with news-specific metadata.
• Support of automatic content annotation using external NLP APIs (Alchemy, Extractiv, Open Calais, Ontos, Evri, Saplo, Lupedia and DBpedia spotlight.). This feature provides an initial set of annotations for users that can be modified and extended later on.
• Combination of the results of multiple NLP APIs based on user preferences. This features improves the quality of automatic annotations.
• Support of WYSIWYM view for content authoring.
• One click editing of annotated entities.

A demo version of RDFaCE-Lite is available at http://rdface.aksw.org/lite/. To watch a brief screencast of RDFaCE-Lite features, visit here. For more information visit the RDFaCE Project Page.

This webinar in the course of the LOD2 webinar series will present use cases and live demos of the Free University of Berlin’ SILK.

The 1st version of the LOD2 Stack has been published in September 2011 in the form of a LOD2 Stack demo and the downloadable LOD2 Stack virtual machine image – additional details and the instructions on installing the LOD2 Stack from scratch are available in the HOW-TO-START document.

SILK is a tool for discovering relationships between data items within different Linked Data sources. The declarative Silk Link Specification Language (Silk-LSL) allows the user to specify identity resolution heuristics which define the conditions data items must fulfil in order to be interlinked. The LOD2 stack employs Silk to identify URIs which represent the same real-world entity.”

This webinar will be presented by the LOD2 Partner: Free University of Berlin, Germany.

The LOD2 webinar series is powered by the LOD2 project organised and produced by the Semantic Web Company (Austria). If you are interested in Linked (Open) Data principles and mechanisms, LOD tools & services and concrete use cases that can be realised using LOD then join us in the LOD2 webinar series! The LOD2 team is looking forward to meeting you at the webinar!!

Date: 21.02. 2012, 04.00pm – 05.00pm CET
Information & Registration: https://www2.gotomeeting.com/register/177747714

What’s next – the LOD2 webinar series

The LOD2 webinar series offers several (one-per-month) free webinars about Linked Open Data tools and services around the LOD2 project, the LOD2 Stack and the Linked Open Data Life Cycle, also in the form of 3rd-party tools.
The next date of the LOD2 webinar series is already fixed as follows:

• March 2012 – LIMES + SAIM (University of Leipzig)

Web: http://lod2.eu
Blog: http://blog.lod2.eu
Slideshare: http://www.slideshare.net/lod2project
Twitter: @lod2project , #lod2
flickR: http://www.flickr.com/photos/lod2/Demo: http://demo.lod2.eu/lod2demo
Virtual Machine Image: http://stack.lod2.eu/VirtualMachines/
How-To-Start Document: lod2-stack.googlecode.com/svn/trunk/documents/HowToStart.pdf