Title :
Granularity-wise separation in covering approximation spaces
Author_Institution :
Dept. of Math., Suzhou Univ., Suzhou
Abstract :
Based on lower approximation operator C1 and upper approximation operator Cmacr1, this paper investigates granularity-wise separations in covering approximation space (U, C), where C1 and Cmacr1 are Zakowskipsilas approximation operators. By these investigations, some characterizations for granularity-wise separations are obtained and some relations among granularity-wise separations are established.
Keywords :
approximation theory; mathematical operators; Zakowski approximation operator; approximation space; granularity-wise separation; lower approximation operator; upper approximation operator; Data mining; Logic; Mathematics; Set theory;
Conference_Titel :
Granular Computing, 2008. GrC 2008. IEEE International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2512-9
Electronic_ISBN :
978-1-4244-2513-6
DOI :
10.1109/GRC.2008.4664653
