数据采集与处理2016，Vol.31Issue(6)：1156-1163,8.
基于三支决策的模糊信息系统OWA算子参数选择
Three-way Decisions Based Parameter Selection of OWA Operators in Fuzzy Information Sys tem
摘要
Abstract
In the fuzzy information system ,tolerance relation of the λlevel sets based on the similar de‐gree of the objects can be obtained by the ordered weighted averaging (OWA ) operator .Indiscernibility relation and grain size are affected by the fuzzy quantifier parameters (α,β) of the OWA operators ,when the value of λis the same .Therefore ,it is worth to study how to reasonably select fuzzy quantifier pa‐rameter (α,β) values .Parameter selection of OWA operators is discussed based on three‐way decisions of rough set theory in fuzzy information system .According to radicalness ,mean ,and negative of parame‐ters semantics ,three most commonly used values of (α,β) are proposed .Furthermore ,related properties of similar degrees ,tolerance classes ,upper and lower approximation sets as well as three‐way regions are discussed based on three most commonly used values of (α,β) .Finally ,experimental results are used to analyze reasonableness of semantic explanations about fuzzy quantifier parameters .The study adopts a novel viewpoint of three‐way decisions theory ,and the new semantic explanations and validity of selection methods about related fuzzy quantifier parameters (α,β) in the OWA operators are given in fuzzy infor‐mation system .关键词
模糊信息系统/粗糙集/三支决策/OWA算子/相容关系Key words
fuzzy information system/rough set/three-way decisions/OWA operator/tolerance relation分类
信息技术与安全科学引用本文复制引用
杨霁琳,张贤勇,唐孝..基于三支决策的模糊信息系统OWA算子参数选择[J].数据采集与处理,2016,31(6):1156-1163,8.基金项目
国家自然科学基金（61203285，61303204，61673285）资助项目；四川省教育厅科研（15ZB0028）资助项目。 （）
