Title :
New operators in covering rough set theory
Author :
Chen, Dingjun ; Yi, Liu ; Wu, Kaiteng ; Qin, Keyun
Author_Institution :
Sichuan Provincial Key Lab. of Numerical Simulation, Neijiang Normal Univ., Neijiang, China
Abstract :
Two new pairs of operators are defined in covering rough set and their properties are discussed . Using them, two inequalities well known in the covering rough set theory can now be modified to become equalities. With the change, no information will be lost in the new expressions. Finally, we prove that the two pairs of operators are equivalent.
Keywords :
rough set theory; covering rough set theory; two inequalities; two operator pairs; Educational institutions; Information science; Intelligent systems; Knowledge engineering; Laboratories; Mathematics; Numerical simulation; Process control; Set theory; Systematics;
Conference_Titel :
Intelligent System and Knowledge Engineering, 2008. ISKE 2008. 3rd International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-2196-1
Electronic_ISBN :
978-1-4244-2197-8
DOI :
10.1109/ISKE.2008.4731060
