International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 161 - Number 8 |
Year of Publication: 2017 |
Authors: N. Durga Devi, R. Raja Rajeswari, P. Thangavelu |
10.5120/ijca2017913246 |
N. Durga Devi, R. Raja Rajeswari, P. Thangavelu . Approximations of Rough Sets via Filter by using g-increasing and g-decreasing Sets. International Journal of Computer Applications. 161, 8 ( Mar 2017), 23-30. DOI=10.5120/ijca2017913246
In this paper, we introduce a way of constructing a rough set via grill ordered topological spaces. Increasing and decreasing sets are defined based on grill and comparisons between current approximations and previous approximations by Shafei and Kandil are carried out. Also it is shown that the chances of getting better approximation by our method of approximations are greater than any of the available methods.