|From:||Ali Hashemi <ali.hashemi+ontolog@xxxxxxxxxxx>|
|Date:||Thu, 29 Jan 2009 10:18:06 -0500|
The cited paragraph is from:
Nicola Guarino, "Formal Ontology and Information Systems." Proceedings of 1st Interdisciplinary Ontology Meeting, eds M. Okada & B. Smith. pp. 13-28, 2008.
On Thu, Jan 29, 2009 at 10:14 AM, Ali Hashemi <ali.hashemi+ontolog@xxxxxxxxxxx> wrote:
The following from Guarino (2008) is apt here, i think:In the philosophical sense, we may refer to an ontology as a particular system of categories accounting for a certain vision of the world. As such, this system does not depend on a particular language: Aristotle's ontology is always the same, independently of the language used to describe it. On the other hand, in its most prevalent use in AI, an ontology refers to an engineering artifact, constituted by a specific vocabulary used to describe a certain reality, plus a set of explicit assumptions regarding the intended meaning of the vocabulary words. This set of assumptions has usually the form of a first-order logical theory, where vocabulary words appear as unary or binary predicate names, respectively called concepts and relations. In the simplest case, an ontology describe a hierarchy of concepts related by subsumptions relationships; in more sophisticated cases, suitable axioms are added in order to express other relationships between concepts and to constrain their intended interpretation.
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