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Wednesday, November 19

9:30am CET

Lizard - Clustering An RDF Triplestore - Andy Seaborne, Epimorphics Ltd
This is the story of building a clustered SPARQL database. Demand on
triplestores is growing, both in terms of scale and reliable operation.
Replication and clustering are needed for fault tolerant operation and for
larger datasets. Server replication of a single machine database only get so far.
It is easier to have a system designed to harness the capabilities of
several machines in one system. The goal of ""Lizard"" is to provide a solid
platform for triplestore operation.

In this presentation, Andy will describe how ""Lizard"" takes the Apache Jena
TDB database design and extends it to cluster operation. The talk will
cover the core principles of the TDB design and SPARQL execution, the
choices to be made in the ""Lizard"" design that rework the system for a
medium scale cluster system, and report of the current status.

avatar for Andy Seaborne

Andy Seaborne

Andy works on infrastructure for linked data graph systems. He was lead editor for SRARQL, the RDF Query Language. Andy developed the ARQ query engine which is released as part of Apache Jena where he is a committer. He has spoken at conferences and at developer events about linked... Read More →

Wednesday November 19, 2014 9:30am - 10:20am CET

10:40am CET

Manage Linked Media With Apache Marmotta - Thomas Kurz, Redlink GmBH
The integration of multimedia assets on the web with structured (linked) data promises further opportunities for digital market places regarding findability and recommendations. The new W3C standards for Media Annotation, Media Fragment UIRs and Linked Data Platforms build a stable base for this purpose. Thomas Kurz shows how to use the Linked Data Platform Apache Marmotta in combination with the Red5 Media Server as a backend for the storage and retrieval of Linked Media. In his talk he is going to show extensions for a seamless integration of media streaming for Non-RDF resources and spatio-regional media fragment retrieval with SPARQL.


Thomas Kurz

Co-Founder, Salzburg Research
Thomas Kurz is co-founder of Redlink GmbH, Senior Researcher at Salzburg Research, and contributor to Apache Marmotta. Thomas is working mostly on Open Source projects within large-scale National and European research projects like KiWi, SNML and MICO. He presented his work in many... Read More →

Wednesday November 19, 2014 10:40am - 11:30am CET

11:40am CET

Open Annotation Support For Apache Stanbol - Rupert Westenthaler, Salzburg Research
Open Annotation is an W3C working draft that uses RDF to (formally) describe - annotate - associations between related resources. In this presentation Rupert Westenthaler will show how Apache Stanbol can be configured to use an Annotation Model compatible to this recommendation; This presentation will first provide an overview on Open Annotation and present strengths and weaknesses of it when used for the Stanbol Enhancer. The second section will present the Open Annotation compatible annotation model for the Stanbol Enhancer. and how this model is generated based on the currently used one. The final section will show how to configure Stanbol to use the new model and conclude with a demonstration.


Rupert Westenthaler

Researcher, Salzburg Research
Rupert Westenthaler is co-founder of Redlink GmbH, Researcher at Salzburg Research and contributor to Apache Stanbol as well as some other Apache projects. Rupert is a Software Engineer specialized on applied research. His main interests are Natural Language Processing, Information... Read More →

Wednesday November 19, 2014 11:40am - 12:30pm CET

2:00pm CET

Quadrupling Your Elephants - RDF And The Hadoop Ecosystem - Rob Vesse, YarcData
The Hadoop ecosystem is excellent in providing a large variety of data processing paradigms and supports a wide variety of data formats. However support for RDF within this ecosystem is often non-existent or confined to academic research which has yet to make the jump to production ready systems. In this talk I will present several projects I've been involved in both inside and outside the ASF which are looking at bringing production ready RDF support to the Hadoop ecosystem.

avatar for Rob Vesse

Rob Vesse

Software Engineer, YarcData
Rob Vesse is a Software Engineer at YarcData (part of Cray Inc) working on their Urika Graph Analytics platform. He is their resident RDF, SPARQL and Semantic Web expert having been heavily involved in these areas for the past 5 years. Currently he is a committer and PMC member on... Read More →

Wednesday November 19, 2014 2:00pm - 2:50pm CET

3:00pm CET

Towards a Commons RDF Library - Sergio Fernández, Redlink GmbH
In the Java world there is an historical incompatibility issue between the two major RDF toolkits: Apache Jena and OpenRDF Sesame. But behind this effort there is a completely different approach than before. This library does not pretend to be a generic API wrapping those libraries, but a set of interfaces for the RDF 1.1 concepts that can be used to expose cores concepts using common Java interfaces. In the initial phase commons-rdf is focused on a subset of the core concepts defined by RDF 1.1 (URI/IRI, Blank Node, Literal, Triple, and Graph). In particular, Commons RDF aims to provide a type-safe, non-general API that covers RDF 1.1. In a future phase we may define interfaces for Datasets or Quads.

Counts in core contributors from both Jena and Sesame, But it will live or die on its own merits!

The working repository can be found at http://github.com/wikier/commons-rdf

avatar for Sergio Fernández

Sergio Fernández

Software Engineer, Redlink GmbH
I'm a Software engineer specialized in innovation, with a focus on Data Architectures. My interests include Distributed Architectures, Data Integration, Linked Data and System Engineering. I've worked as software engineer and project manager in different industries, but always somehow... Read More →

Wednesday November 19, 2014 3:00pm - 3:50pm CET

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