This RDF vocabulary can be use to describe and categorize annotations involving entity mentions (sub-strings of text) that link to knowledgebase identifiers @en

The Linked SPARQL Queries Vocabulary (LSQ(V)), defined using RDF(S) and OWL, provides a machine readable vocabulary to help describe queries in SPARQL logs and their statistics....

La Ontologia de IMGpedia provee terminos para referirse a descriptores visuales y relaciones de similitud entre imagenes @es, The IMGpedia Ontology provides terms to describe...

A vocabulary to describe rules (RIF, N3, Prolog, etc.) in the Web, which enables to effectively and efficiently discover rules in any format, based on topics, language, goals,...

orca, the Ontology of Reasoning, Certainty and Attribution, is an ontology for characterizing the certainty of information, how it is known, and its source