The Ontological Level (1994)
| Venue: | PHILOSOPHY AND THE COGNITIVE SCIENCES |
| Citations: | 41 - 7 self |
BibTeX
@INPROCEEDINGS{Guarino94theontological,
author = {Nicola Guarino},
title = {The Ontological Level},
booktitle = {PHILOSOPHY AND THE COGNITIVE SCIENCES},
year = {1994},
pages = {443--456},
publisher = {Holder-Pichler-Tempsky}
}
Years of Citing Articles
Bookmark
 |
 |
 |
 |
 |
 |
OpenURL
Abstract
In 1979, Ron Brachman discussed a classification of the various primitives used by KR systems at that time. He argued that they could be grouped in four levels, ranging from the implementational to the linguistic level (Fig. 1). Each level corresponds to an explicit set of primitives offered to the knowledge engineer. At the implementational level, primitives are merely pointers and memory cells, which allow us to construct data structures with no a priori semantics. At the logical level, primitives are propositions, predicates, logical functions and operators, which are given a formal semantics in terms of relations among objects in the real world. No particular assumption is made however as to the nature of such relations: classical predicate logic is a general, uniform, neutral formalism, and the user is free to adapt it to its own representation purposes. At th
