Linked Media Framework
|Linked Media Framework|
|Last release:||2.0rc2 (2010/05/30)|
|Author(s):||Sebastian Schaffert, Thomas Kurz, Stephanie Stroka, Dietmar Glachs|
The Linked Media Framework k is an easy-to-setup server application that bundles central Semantic Web technologies to offer advanced services. The Linked Media Framework consists of LMF Core and LMF Modules.
The core component of the Linked Media Framework is a Linked Data Server that allows to expose data following the Linked Data Principles:
- Use URIs as names for things.
- Use HTTP URIs, so that people can look up those names.
- When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL).
- Include links to other URIs, so that they can discover more things.
The Linked Data Server implemented as part of the LMF goes beyond the Linked Data principles by extending them with Linked Data Updates and by integrating management of metadata and content and making both accessible in a uniform way. Our extensions are described in more detail in LinkedMediaPrinciples.
In addition to the Linked Data Server, the LMF Core also offers a highly configurable Semantic Search service and a SPARQL endpoint. Setting up and using the Semantic Search component is described in SemanticSearch. Accessing the SPARQL endpoint is described in SPARQLEndpoint.
Whereas the extension of the Linked Data principles is already conceptually well-described, we are currently still working on a proper specification and extension of Semantic Search and SPARQL endpoint for Linked Data servers.
As extension for the LMF Core, we are working on a number of optional modules that can be used to extend the functionality of the Linked Media Server:
- LMF Permissions implements and extends the WebID and WebACL specifications for standards-conforming authentication and access control in the Linked Media Framework. (state: almost completed)
- LMF Enhancer offers semantic enhancement of content by analysing textual and media content; the LMF Enhancer will build upon UIMA, Apache Tika, and our own Apache Stanbol framework (state: started)
- LMF Media Interlinking will implement support for multimedia interlinking based on the work in the W3C Multimedia Fragments WG and the W3C Multimedia Annotations WG
- LMF Reasoner implements a rule-based reasoner that allows to process Datalog-style rules over RDF triples; the LMF Reasoner will be based on the reasoning component developed in the KiWi? project, the predecessor of the LMF (state: planned)
- LMF Versioning implements versioning of metadata updates; versioning itself is already carried out by LMF Core, but the management of versions will be carried out by this module (state: started)