On twelve types of covering-based rough sets

被引：6
|
作者：
Safari, Samira [1 ]
Hooshmandas, Mohammad Reza [1 ,2 ]
机构：
[1] Yazd Univ, Dept Comp Sci, Yazd, Iran
[2] Yazd Univ, Lab Quantum Informat Proc, Yazd, Iran
来源：
SPRINGERPLUS | 2016年 / 5卷
关键词：
Rough sets; Approximation spaces; Covering spaces; Approximation operators;
D O I：
10.1186/s40064-016-2670-y
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Covering approximation spaces are a generalization of equivalence-based rough set theories. In this paper, we will consider twelve types of covering based approximation operators by combining four types of covering lower approximation operators and three types of covering upper approximation operators. Then, we will study the properties of these new pairs and show they have most of the common properties among existing covering approximation pairs. Finally, the relation between these new pairs is studied.
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收藏
页数：18
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