Title :
Rough approximations in tolerance rough set models
Author :
Jilin Huang ; Yanyong Guan ; Jianting Shen ; Hongkai Wang
Author_Institution :
Sch. of Math. Sci., Univ. of Jinan, Jinan, China
Abstract :
Various lower and upper approximations defined by the tolerance classes of objects and maximal tolerance classes are compared in the tolerance rough set models. Based on the study, some suggestions for choosing the suitable lower and upper approximations are given for the purpose of improving approximation accuracy.
Keywords :
rough set theory; lower approximations; object tolerance classes; rough approximations; tolerance rough set models; upper approximations; Accuracy; Approximation methods; Data mining; Educational institutions; Information systems; Knowledge discovery; Mathematical model; approximations; maximal tolerance class; rough set; tolerance relation;
Conference_Titel :
Fuzzy Systems and Knowledge Discovery (FSKD), 2014 11th International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4799-5147-5
DOI :
10.1109/FSKD.2014.6980807
