Community Research and Development Information Service - CORDIS

Digital libraries – Semantic web thesaurus representation and methods

SKOS Core supports the RDF description of language-oriented knowledge organisation systems (KOS) such as thesauri, glossaries, controlled vocabularies, taxonomies and classification schemes. SKOS can be used as an interchange format throughout the digital library and information retrieval world. The representation is based on the existing international standards for thesauri and uses the RDF language recommended by W3C for use on the World Wide Web for vocabulary related information aimed at the interchange and interaction of knowledge throughout the semantic web.

Because SKOS representations of a thesaurus are in RDF they can be manipulated, transformed, stored and searched using the standard RDF tools available from many public domain and commercial vendors. The use of RDF as the representation language also allows SKOS thesauri to easily interact with tools and other representations used throughout the Semantic Web.

The definition of SKOS is maintained by the W3C and is expected to be available for free public access and use for the indefinite future. SKOS is currently passing through the W3C standardisation process in the Semantic Web Best practices work group with the intention that it become a W3C recommendation.

Tools to operate on SKOS thesauri using high level operations appropriate to thesauri and digital library applications are also available from the W3C site, although these may not be free for public access. These include an API to access a SKOS service as a Web Service and a demonstrator service - the DREFT SKOS Thesaurus API Demonstrator.

Guidelines are available for migrating thesauri stored in other formats into SKOS, as is a Guide to the SKOS definition itself.

More information on the SWAD-Europe project can be found at:

Related information

Reported by

CCLRC Rutherford Appleton Laboratory (RAL)
OX11 0QX Didcot
United Kingdom
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top