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In formal extensional ontologies, only the utterances of words and numbers are considered individuals – the numbers and names themselves are classes. In a 4D ontology, an individual is identified by its spatio-temporal extent. Examples of formal extensional ontologies are BORO, ISO 15926 and the model in development by the IDEAS Group.
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British Journal of Special Education; Exceptional Children; Focus on Autism and Other Developmental Disabilities; Gifted Child Quarterly; Gifted Child Today; Journal for the Education of the Gifted; Journal of Early Intervention; Journal of Learning Disabilities; Journal of Research in Special Educational Needs; Journal of Special Education and ...
Ontology Design Patterns portal [73] is a wiki repository of reusable components and practices for ontology design, and also maintains a list of exemplary ontologies. Protégé Ontology Library [74] contains a set of OWL, Frame-based and other format ontologies. SchemaWeb [75] is a directory of RDF schemata expressed in RDFS, OWL and DAML+OIL.
Cremin, Lawrence A. American Education: The Colonial Experience, 1607–1783. (1970); American Education: The National Experience, 1783–1876. (1980); American Education: The Metropolitan Experience, 1876-1980 (1990); standard 3 vol detailed scholarly history; Eisenmann, Linda. Higher Education for Women in Postwar America, 1945-1965.
Ontologies can be used for structuring data in a machine-readable manner. [14] In this context, an ontology is a controlled vocabulary of classes that can be placed in hierarchical relations with each other. [15] These classes can represent entities in the real world which data is about.
Some upper ontologies—Cyc is often cited as an example in this regard—are very large, ranging up to thousands of elements (classes, relations), with complex interactions among them and with a complexity similar to that of a human natural language, and the learning process can be even longer than for a natural language because of the ...
Gellish is an example of a combined ontology language and ontology that is description logic based. It distinguishes between the semantic differences among others of: relation types for relations between concepts (classes)