Concept Schemes used for subject index can be based on pre-coordinated concepts (e.g. a list of countries combined with other concepts to form country-specific concepts) or they can be used for post-coordinated indexing (a resource is indexed with multiple concepts). SKOS has no method to express such combined (aka compound) concepts. In JSKOS we introduced concept bundles but there is no RDF class yet. I propose to introduce a new class "CombinedConcept" to XKOS. This class could be a superclass of xkos:ConceptAssociation.
URI: xkos:CombinedConcept
Description: A set of concepts that together form a new concept.
Concept Schemes used for subject index can be based on pre-coordinated concepts (e.g. a list of countries combined with other concepts to form country-specific concepts) or they can be used for post-coordinated indexing (a resource is indexed with multiple concepts). SKOS has no method to express such combined (aka compound) concepts. In JSKOS we introduced concept bundles but there is no RDF class yet. I propose to introduce a new class "CombinedConcept" to XKOS. This class could be a superclass of xkos:ConceptAssociation.