Title :
Granular and rough computing on covering
Author :
Xie, Jun ; Lin, Tsau Young ; Zhu, William
Author_Institution :
The College of Information Engineering, Taiyuan University of Technology, China
Abstract :
Covering-based rough set (CRS) is a meaningful and important generalization of Pawlak´s rough set theory. The primary goal of this paper is to extend the formal study to partial covering (PCov) in terms of the global granular computing model (global/2nd GrC model). The main focus is to investigate the “best” approximations, where “best” was used by Pawlak in his 1982 paper. The study includes a comparison with many existing theories.
Keywords :
Computational modeling; Integrated circuit modeling; best upper and lower approximations; covering-based rough set; largest neighborhood system; neighborhood system; the global/2nd GrC Model; topological equivalence;
Conference_Titel :
Granular Computing (GrC), 2012 IEEE International Conference on
Conference_Location :
Hangzhou, China
Print_ISBN :
978-1-4673-2310-9
DOI :
10.1109/GrC.2012.6468712
