Title :
On generalized variable precision rough fuzzy set model
Author :
Shibao, Sun ; Min, Li ; Keyun, Qin
Author_Institution :
Electron. Inf. Eng. Coll., Henan Univ. of Sci. & Technol., Luoyang
Abstract :
Generalized Ziarkopsilas variable precision rough set model and generalized rough fuzzy set model are introduced and the drawbacks of them are found. Based on support relative error ratio and error parameter beta ( 0 les beta < 0.5 ) , the generalized variable precision rough fuzzy set model is proposed. The basic properties of lower and upper approximation operators are investigated. The relation of between this model and other rough set models is analyzed in detail.
Keywords :
fuzzy set theory; rough set theory; approximation reduction; rough fuzzy set; variable precision rough set; Fuzzy sets; Approximation Reduction; Generalized Variable Precision Rough Fuzzy Set; Rough Fuzzy Set; Variable Precision Rough Set;
Conference_Titel :
Control and Decision Conference, 2008. CCDC 2008. Chinese
Conference_Location :
Yantai, Shandong
Print_ISBN :
978-1-4244-1733-9
Electronic_ISBN :
978-1-4244-1734-6
DOI :
10.1109/CCDC.2008.4597809
