[ANN] Apache Jena Elephas

Apache Jena is framework for building linked data and semantic web
applications.

The team is pleased to announce new functionality in Jena 2.13.0 to
support working with RDF data on Apache Hadoop.

Apache Jena Elephas is a new set of modules which provide the basic
building blocks necessary to write RDF producing and consuming Hadoop
2.x applications.

It provides a Common library which contains Hadoop Writable
implementations for the basic RDF primitives (Node, Triples and Quads),
an IO library which contains input and output format support for all RDF
serialisations Jena supports and a Map/Reduce library which contains
some basic Mapper and Reducer implementations for manipulating RDF.
There is also a demo application that shows how to use these libraries
to compute some basic statistics across arbitrary RDF data.

These libraries have been under development for some time but not yet
widely deployed in production environments, we would appreciate any
feedback on bugs, missing features and documentation improvements.

  http://jena.apache.org/documentation/hadoop/

For a high level overview of these libraries you may want to take a look
at the following presentation I gave recently at the London Semantic
Web Meetup:

  http://www.slideshare.net/RobVesse/apache-jena-elephas-and-friends

Regards,

Rob Vesse

On behalf of the Apache Jena team