ontology

xAPI Controlled Vocabulary Ontology

"XAPI vocabularies are created and shared by Communities of Practice (CoPs) to help facilitate the reuse of Verbs and Activity Types. This schema was designed to enhance the semantic interoperability of xAPI by encouraging the adoption of RDF principles and publishing practices. This document defines a schema and provides descriptions of each of the classes and properties that are recommended for use when classifying and publishing datasets as RDF.

The Vagueness Ontology

"Vagueness is a common human knowledge and language phenomenon, typically manifested by terms and concepts like High, Expert, Bad, Near, etc. It is a phenomenon related to our inability to precisely determine the extensions of such concepts in certain domains and contexts. That is because vague concepts have typically blurred boundaries which do not allow for a sharp distinction between the entities that fall within their extension and those that do no. For example, some people are borderline tall: not clearly 'tall' and not clearly 'not tall'.

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