Title :
A comparison of some approximation definitions about neighborhood system based rough sets
Author :
Meng, Jun ; Zhang, Jing ; Wang, Xiukun
Author_Institution :
School of Computer Science and Technology, Dalian University of Technology, China 116024
Abstract :
This paper presents two kinds of rough set approximation definition based on neighborhood system, comparison of some kinds of approximation, and analysis of their related properties. Adopting Pawlak´s method to measure the accuracy in three approximation definitions, that is, Lin´s definition and two definitions presented in this paper. The conclusion is that the first approximation definition presented in this paper is more accurate than the other two.
Keywords :
Abstracts; Approximation methods; Rough sets; approximation definition; neighborhood system; rough set;
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.2012.6468669
