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RSFDGRC
2005
Springer

Rough Set Approximation Based on Dynamic Granulation

9 years 8 months ago
Rough Set Approximation Based on Dynamic Granulation
In this paper, the concept of a granulation order is proposed in an information system. The positive approximation of a set under a granulation order is defined. Some properties of positive approximation are obtained. For a set of the universe in an information system, its approximation accuracy is monotonously increasing under a granulation order. This means that a proper family of granulations can be chosen for a target concept approximation according to the user requirements. An algorithm based on positive approximation is designed for decision rule mining, and its application is illustrated by an example.
Jiye Liang, Yuhua Qian, Chengyuan Chu, Deyu Li, Ju
Added 28 Jun 2010
Updated 28 Jun 2010
Type Conference
Year 2005
Where RSFDGRC
Authors Jiye Liang, Yuhua Qian, Chengyuan Chu, Deyu Li, Junhong Wang
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