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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 ?
Ontologists, Domain Experts, and Ontology Architecture
And he compares his denials, in our baseball-believing world, to those of extraterrestrial ontologists who reject the conjunctive objects believed in by the inhabitants of their world.
Ontologists stress the autonomy of texts, aestheticists the autonomy of the reader.
It must escape Groovy's "goon USA." According to Bey, "The TAZ is an encampment of guerilla ontologists: strike and run away.
A composition of "ontologists, internists, surgeons, experts in medical ethics, medical school administrators, economists, representatives of the insurance industry, patient advocates and politicians" may be able to define "experimental" in a more universal manner, taking all aspects of the reviewed procedure or treatment under consideration.(200) "Through such a collective task force perhaps some consensus might be reached concerning the definition of experimental procedures" that would balance insurers concern with costs with insured medical worries.(201)
Along similar lines, Reinhardt Grossmann has argued that naturalists are at war with what he calls ontologists.4 According to Grossmann, the universe is the spatio-temporal totality of physical entities and the world includes every existent whatever, including non-spatio-temporal abstract entities.
Section one (chapters one and two) focuses on the debate between ontologists and naturalists over the existence of non-spatiotemporal abstract entities.
See the recent blog post by Christian Thorne titled, "To the Political Ontologists:: http://sites.williams.edu/cthorne/articles/to-the-political- ontologists/(retrieved July 24, 2013).
With Guattari's caution in mind, and that of relational ontologists who suggest that nothing proceeds the relating, I want to propose that four modalities of duration (4) might be at stake in thinking with insensible subjects that bear on our understanding of how sense prefigures time:
As opposed to the ontologists who followed Rosmini, and who defended an Italian philosophy, this new Academy proposed the Christian philosophy of St.
Once fundamental requirements have been identified, your organization can proceed to assemble the right team of individuals from key groups such as the departments or divisions representing the users targeted by the initiative, IT departments and if staffed accordingly--any librarians or library scientists or ontologists. This team can then further assess user needs, refine requirements accordingly and finalize a strategy for selecting and deploying the most appropriate search and classification solution.
Suddenly they're renamed taxonomists, lexicographers, metadata pros, and intranet ontologists, and they're paid at a big premium as the for-profit sector attempts to extract them from their public-sector sinecures.

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