Title :
A variable precision rough set model in set-valued decision information systems
Author :
Zhai, Kun ; Lian, Zhengguo
Author_Institution :
Qingdao Agric. Univ., Qingdao, China
Abstract :
Rough set theory, proposed by Pawlak in 1982, has been conceived as an important mathematical tool to conceptualize and analyze different types of data. It is an extension of classical set theory for the research of systems marked by uncertain and incomplete information. In the paper, by using tolerance relation in original VPRS model proposed by Ziarko, a novel model of VPRS is proposed in set-valued information systems. The related important properties are also investigated.
Keywords :
information theory; rough set theory; VPRS model; classical set theory; mathematical tool; rough set theory; set-valued decision information systems; set-valued information systems; tolerance relation; variable precision rough set model; rough sets; set-valued information systems; variable rough sets;
Conference_Titel :
System Science, Engineering Design and Manufacturing Informatization (ICSEM), 2011 International Conference on
Conference_Location :
Guiyang
Print_ISBN :
978-1-4577-0247-1
DOI :
10.1109/ICSSEM.2011.6081194
