1992 | OriginalPaper | Buchkapitel
The Discernibility Matrices and Functions in Information Systems
verfasst von : Andrzej Skowron, Cecylia Rauszer
Erschienen in: Intelligent Decision Support
Verlag: Springer Netherlands
Enthalten in: Professional Book Archive
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We introduce two notions related to any information system, namely the discernibility matrix and discernibility function. We present some properties of these notions and as corollaries we obtain several algorithms for solving problems related among other things to the rough definability, reducts, core and dependencies generation.