3 resultados para Rough Kernels
em Bulgarian Digital Mathematics Library at IMI-BAS
Resumo:
2000 Mathematics Subject Classification: Primary 42B20; Secondary 42B15, 42B25
Resumo:
This paper considers the problem of concept generalization in decision-making systems where such features of real-world databases as large size, incompleteness and inconsistence of the stored information are taken into account. The methods of the rough set theory (like lower and upper approximations, positive regions and reducts) are used for the solving of this problem. The new discretization algorithm of the continuous attributes is proposed. It essentially increases an overall performance of generalization algorithms and can be applied to processing of real value attributes in large data tables. Also the search algorithm of the significant attributes combined with a stage of discretization is developed. It allows avoiding splitting of continuous domains of insignificant attributes into intervals.
Resumo:
AMS subject classification: Primary 34A60, Secondary 49K24.