Simple Knowledge Organization System ( SKOS ) is a family of formal languages designed for representation of thesauri , classification schemes , taxonomies , subject-heading systems , or any other type of structured controlled vocabulary . SKOS is built upon RDF and RDFS , and its main objective is to enable easy publication of controlled structured vocabularies for the Semantic Web .
SKOS is an area of work developing specifications and standards to support the use of knowledge organization systems (KOS) such as thesauri, classification schemes, subject heading lists and taxonomies within the framework of the Semantic Web ... [ read more ] Alignment between SKOS and new ISO 25964 thesaurus standard (2012-12-13) ISO 25964-1, published in 2011, replaced the previous thesaurus standards ISO 2788 and ISO 5964 (both now withdrawn).
DBpedia is a crowd-sourced community effort to extract structured information from Wikipedia and to make this information available on the Web. DBpedia allows you to make sophisticated queries against Wikipedia, and to link other data sets on the Web to Wikipedia data.