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kuni katsuya

Ontology (information science) - Wikipedia, the free encyclopedia - 0 views

  • an ontology formally represents knowledge as a set of concepts within a domain, and the relationships between those concepts. It can be used to reason about the entities within that domain and may be used to describe the domain
  • n ontology renders shared vocabulary and taxonomy which models a domain with the definition of objects and/or concepts and their properties and relations
  • Common components of ontologies include:
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  • Individuals: instances or objects
  • Attributes: aspects, properties, features, characteristics, or parameters
  • Relations: ways in which classes and individuals can be related to one another
  • Function terms:
  • Restrictions: formally stated descriptions of what must be true in order for some assertion to be accepted as input
  • Rules: statements in the form of an if-then (antecedent-consequent) sentence that describe the logical inferences that can be drawn from an assertion in a particular form
  • Axioms: assertions (including rules) in a logical form
  • Events: the changing of attributes or relations
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