【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。更多还原

【Abstract】 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.更多还原