【摘要】 针对决策表核属性的计算问题 ,对前人的一些理论观点进行讨论 ,在认识这些理论观点缺陷的基础上 ,探讨Rough集理论代数观和信息观这两种形式的关系 ,发现它们在核属性和约简上的差异 ,提出决策表核属性的计算方法 .更多还原

【Abstract】 The problem of calculating the core attributes of a decision table is studied. Some errors and limitations in some former results by Hu and Ye are analyzed. Definitions of core attributes in the algebra and information views are studied and the difference between these two views is discovered. An algorithm for calculating the core attributes of a decision table is also presented.更多还原