摘要
基于变精度粗糙集模型,在决策信息系统中定义近似协调等价类的一种近似约简;构造相应的区分函数,利用布尔推理理论求取近似协调等价类的近似约简,并由此获取近似决策规则的简化决策规则。利用这个方法得到的简化决策规则,与原系统中的近似决策规则是相容的。
A kind of approximate reduct of approximate consistent equivalent class in decision information system is proposed based on VPRS model,a discernibility function is constructed and used to compute the approximate reduct by utilizing Boolean reasoning techniques.From all reducts of approximate consistent equivalent classes,simplified approximate decision rules compatible with original system can be derived.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第22期143-145,共3页
Computer Engineering and Applications
基金
国家自然科学基金资助项目(编号:70271048)
关键词
变精度粗糙集
决策规则
属性约简
区分函数
variable precision rough set,decision rule,attribute reduct,discernibility function
