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ontology:

see metaphysicsmetaphysics
, branch of philosophy concerned with the ultimate nature of existence. It perpetuates the Metaphysics of Aristotle, a collection of treatises placed after the Physics [Gr.
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ontology

the branch of philosophy (and metaphysics) concerned to establish the nature of the fundamental kinds of thing which exist in the world (e.g. do MINDS exist?). Examples of philosophical ontological theory are PLATO's theory of ‘forms’, or recently, SCIENTIFIC REALISM, which asks what kinds of thing are presupposed by scientific theories.

Ontological arguments are also an explicit (or implicit) feature of sociological theory itself, e.g. DURKHEIM's conception of'social facts, WEBER's (or the SYMBOLIC INTERACTIONIST'S) emphasis on individual actors, or MARX's materialism and emphasis on modes and relations in production.

One argument (HUME's view) is that ontological inquiries are bound to be inconclusive, or are even pointless. Against this, the clarification of underlying assumptions is often important. Undoubtedly debate in sociology since COMTE, much of it broadly ontological in nature, has done much to clarify the nature, while also underlining the very great complexity, of social reality (social action, social structures, etc.). However, it has done so not as a separate realm of inquiry, but as an inherent part of sociological inquiry properly conducted. Philosophy can inform these discussions, but it is no longer regarded as the kind of final arbiter it was once assumed to be. The expectation must be that ontologies will change as knowledge and individual sciences and modes of study change (compare EPISTEMOLOGY, KUHN, FEYERABEND).

Ontology

 

a subdivision of philosophy that studies universal principles of being, its structure and its laws. Essentially, ontology expresses a picture of the world that corresponds to a particular level in the knowledge of reality and that is recorded in a system of philosophical categories characteristic of a particular period and philosophical tradition (for example, materialism and idealism). In this sense, every philosophical and, in general, every theoretical system rests on certain ontological concepts that constitute its stable content foundation but that change as cognition develops.

The term “ontology” was first used in the philosophical lexicon (1613) of R. Goclenius (Germany) as a synonym for metaphysics. It gained currency in the school of C. Wolff, for whom ontology came to signify the primary fundamental part of metaphysics, concerned with definitions of being as such. Until the early 19th century, ontology developed on the basis of speculation and consisted chiefly of ideas concerning the hidden essences of things. The flimsiness of these teachings on being was criticized by German classical philosophy and was fully surmounted by Marxism, which demonstrated the necessary ties among and unity of ontology, epistemology, and logic and, consequently, the dependence of ontological concepts on the existing level and forms of cognition.

In the 20th century the heightened level of abstract scientific cognition has presented certain basic ontological problems—the construction of an adequate ontological interpretation of abstract concepts of modern science (for example, cosmology and the physics of elementary particles) and the creation of a theoretical foundation for modern methodological approaches and trends (for example, the ontological basis of a systems approach, or of cybernetics). The issue of ontology is discussed in contemporary Marxist literature. Although some Marxist philosophers believe that ontology is not entitled to an independent existence, others assert that it should be a special branch of dialectical materialism.

Attempts to restate problems of ontology in a new, primarily subjective, personal vein, as a matter of the strata and levels of being of the personality, are characteristic of a number of schools of modern bourgeois philosophy, particularly phenomenology, existentialism, and personalism. This line of thought reflects the world view of the pessimistic, alienated individual.

E. G. IUDIN

ontology

1. Philosophy the branch of metaphysics that deals with the nature of being
2. Logic the set of entities presupposed by a theory

ontology

(philosophy)
A systematic account of Existence.

ontology

(artificial intelligence)
(From philosophy) An explicit formal specification of how to represent the objects, concepts and other entities that are assumed to exist in some area of interest and the relationships that hold among them.

For AI systems, what "exists" is that which can be represented. When the knowledge about a domain is represented in a declarative language, the set of objects that can be represented is called the universe of discourse. We can describe the ontology of a program by defining a set of representational terms. Definitions associate the names of entities in the universe of discourse (e.g. classes, relations, functions or other objects) with human-readable text describing what the names mean, and formal axioms that constrain the interpretation and well-formed use of these terms. Formally, an ontology is the statement of a logical theory.

A set of agents that share the same ontology will be able to communicate about a domain of discourse without necessarily operating on a globally shared theory. We say that an agent commits to an ontology if its observable actions are consistent with the definitions in the ontology. The idea of ontological commitment is based on the Knowledge-Level perspective.

ontology

(information science)
The hierarchical structuring of knowledge about things by subcategorising them according to their essential (or at least relevant and/or cognitive) qualities. See subject index. This is an extension of the previous senses of "ontology" (above) which has become common in discussions about the difficulty of maintaining subject indices.

ontology

From the Greek words "onto" and "logia," which means the study of being (that which is), an ontology defines the relationships between things. The terms taxonomy and ontology are often used to represent a formal classification of some subject; however, a taxonomy typically defines one category of items in a hierarchical tree structure; whereas an ontology shows the relationships between items in different categories in a graph model.

Ontological Vocabularies
There are numerous vocabularies on the Web that define the data interrelationships on the Semantic Web. Whereas the World Wide Web links Web pages together, the Semantic Web links the data on the Web that are related. See taxonomy, linked open data and Semantic Web.
References in periodicals archive ?
Rather, he is attacking the view that (i) mathematical objects are ontologically independent of sensibles, while (ii) sensibles are ontologically dependent upon mathematical objects.
PIB]: A is ontologically prior to B if and only if A can be what it is independently of B being what it is, while the converse is not the case [Priority in Being] (204).
They could claim that their theory, being a version of neutral monism, is ontologically parsimonious, but the "oneness" is so qualified by so many ontological parsings that the theory appears to be ontologically bloated.
They have relatively little difficulty in confronting the hazards of life, be they physical, social, ethical or whatever,--they are ontologically secure (Laing 1990b, p.
Hegel is arguing the reality is merely a priori adjunct of non-naturalistic ethics, Kant, via the categorical imperative, is holding that ontologically it exists only in the imagination, and Marx is claiming it was offside.
The level of participation throughout was high, and discussion in the small group I attended was lively, with intense interest in how the abstract concept 'system' can be useful in trying to make sense of the complexity of our perceived 'real world' both epistemologically and, very occasionally, in my experience, even ontologically.
In the ontology of photography, the past is felt as an ontologically distinct and often unbridgeable temporal dimension [.
WHEN NORMAN DIED, I felt ontologically heartbroken.
Chapter 4 evinces that for Cusanus epistemology is equivalent to anthropology, for the cognitive activity that characterizes human beings is ontologically an element of divinity.
An undeniable and already clearly recognised shortfall in this type of modern 'Western' medicine is its tendency to reduce humans ontologically to a 'manifestation of general biological, psychological and sociological theories'.
Jesus] didn't say, 'Go out and be ontologically different.
What is at issue here is that ontologically diverting desire at the heart of the "metaphysical imaginary," both desire and dream, synonymous with the thrust of a gnostic craving for an other world that poetry only, Bonnefoy senses, "poetry which is not art, poetry which is both unbridled imagination and adherence to the greatest simpleness of existence," can adequately counterbalance.

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