Chris Bizer wrote:
Hi all,
we are happy to announce the initial public release of Silk, a link
discovery framework for the Web of Data.
The Web of Data is built upon two simple ideas: Employ the RDF data
model to publish structured data on the Web and to set explicit RDF
links between entities within different data sources. While there are
more and more tools available for publishing Linked Data on the Web,
there is still a lack of tools that support data publishers in setting
RDF links to other data sources on the Web. With the Silk - Link
Discovery Framework, we hope to contribute to filling this gap.
Using the declarative Silk – Link Specification Language (Silk-LSL),
data publishers can specify which types of RDF links should be
discovered between data sources and which conditions data items must
fulfill in order to be interlinked. These link conditions can apply
different similarity metrics to multiple properties of an entity or
related entities which are addressed using a path-based selector
language. The resulting similarity scores can be weighted and combined
using various similarity aggregation functions. Silk accesses data
sources via the SPARQL protocol and can thus be used to discover links
between local and remote data sources.
The main features of the Silk framework are:
- it supports the generation of owl:sameAs links as well as other
types of RDF links.
- it provides a flexible, declarative language for specifying link
conditions.
- it can be employed in distributed environments without having to
replicate datasets locally.
- it can be used in situations where terms from different vocabularies
are mixed and where no consistent RDFS or OWL schemata exist.
- it implements various caching, indexing and entity pre-selection
methods to increase performance and reduce network load.
More information about Silk, the Silk-LSL language specification, as
well as several examples that demonstrate how Silk is used to set
links between different data sources in the LOD cloud is found at:
http://www4.wiwiss.fu-berlin.de/bizer/silk/
The Silk framework is provided under the terms of the BSD license and
can be downloaded from
http://code.google.com/p/silk/
Happy linking,
Julius Volz, Christian Bizer
Chris,
Nice!
Could be useful re. our Sponger Meta Cartridges which already perform
lots of lookups across LOD etc.. This is how we mesh data from UMBEL,
Calais, Zemanta, and New York Time data into the output of our
RDFization processing pipeline, for instance.
This language could make the Meta Cartridge feature more pluggable and
amenable to 3rd party Cartridge Developers, especially as we don't want
to take on the burden of building Cartridges for every potential data
source type re. Linked Data Web :-)
Links:
1.
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtSpongerCartridgeProgrammersGuide
- Programmer Guide (*draft*)
On a different note, could we please have the Linking Drug Data (LDD)
effort cross Linked to the Linking Open Data (LOD) effort within ESW
Wiki. I should be able to locate the LDD RDF archives with ease knowing
they've been prepared in line with our generally accepted best practices.
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO
OpenLink Software Web: http://www.openlinksw.com
