A New Subsystem-Based Definition Of Generalized Rough Set Model

Caihui Liu,Meizhi Wang,Yanfei Dai,Yueli Luo

ROUGH SETS, FUZZY SETS, DATA MINING, AND GRANULAR COMPUTING, RSFDGRC 2015（2015）

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摘要

The generalization of Pawlak rough set model always attracts the attentions of the researchers in the rough set society. In this paper, we propose a new subsystem-based definition of generalized rough set model and disclose the corresponding properties. We also discuss the interrelationships between our definition and the existing ones, the outputs show that our definition is effective and reasonable.

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关键词

Binary relation,Generalized rough set,Lower and upper approximations,sigma-algebra

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