Definitions

Concept

a cognitive unit of meaning that has been agreed upon and formalized in a knowledge structure such as a controlled vocabulary, thesaurus, or ontology.

Concept language

the concepts used to define and describe a knowledge structure, for example, an ontology, thesaurus, or controlled vocabulary.

Conceptual query model

a conceptual model of a query, i.e., a distribution over concepts relevant to a query.

Generative concept model

a language model over vocabulary terms associated with a concept.

Conceptual mapping

an unweighted mapping between queries and concepts.