rst09 panel - Rough Sets Theory
rst09 panel - Rough Sets Theory
rst09 panel - Rough Sets Theory
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Concepts<br />
A concept, in the classical view, is<br />
defined by a pair of intension and<br />
extension.<br />
The extension: instances to which the<br />
concept applies.<br />
The intension: a set of singly necessary<br />
and jointly sufficient conditions that<br />
describe the instances of the concept.