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Ontology

Synonyms

Computational ontology; Ontological engineering; Semantic data model

Definition

In thecontext of computer and information sciences, an ontology defines a set of representational primitives with which to model a domain of knowledge or discourse. The representational primitives are typically classes (or sets), attributes (or properties), and relationships (or relations among class members). The definitions of the representational primitives include information about their meaning and constraints on their logically consistent application. In the context of database systems, ontology can be viewed as a level of abstraction of data models, analogous to hierarchical and relational models, but intended for modeling knowledge about individuals, their attributes, and their relationships to other individuals. Ontologies are typically specified in languages that allow abstraction away from data structures and implementation strategies; in practice, the languages of ontologies are closer...

Keywords

  • Level Specification Semantics
  • Low-level Data Model
  • Conventional Database Models
  • Static Semantic Constraints
  • Cross-database Search

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Correspondence to Tom Gruber .

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Gruber, T. (2016). Ontology. In: Liu, L., Özsu, M. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4899-7993-3_1318-2

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  • DOI: https://doi.org/10.1007/978-1-4899-7993-3_1318-2

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