Fuzziness in information systems

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Abstract

This paper considers an approach to approximation of sets assuming fuzzy description of information systems. The notions of lower and upper approximation of fuzzy sets are analysed. Modified definitions of approximations are proposed by extending the concept of variable precision rough sets on fuzzy sets. Decision tables with fuzzy attributes are analysed using a generalised measure of approximation quality. A special form of compatibility relation is proposed in order to compare fuzzy values of attributes. The investigations are based on real process data. © 2003 Published by Elsevier Science B.V.

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Mieszkowicz-Rolka, A., & Rolka, L. (2003). Fuzziness in information systems. In Electronic Notes in Theoretical Computer Science (Vol. 82, pp. 164–173). Elsevier. https://doi.org/10.1016/S1571-0661(04)80715-1

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