T-Rough Approximation Pairs and Covering Based Rough Sets
Xiaohong Zhang, Yanning Zhang, Zhanao Xue, Yingcang Ma · Fundamenta Informaticae · 2015
The relationships between T-rough sets and covering based rough sets are investigated, and two kinds of generated methods of rough approximation operators from existing rough sets are established. Moreover, applying the aforementioned generated methods of approximation operators, S-rough sets and s ome new covering-based rough sets are introduced and their basic properties are discussed.