摘要
主要讨论了决策表属性约简和信息量之间的关系,证明了对于一致决策表,其属性约简在代数表示和信息论中信息量表示下是等价的.并举例说明,对于不一致决策表,其属性的约简不能用信息量来等价表示.
In this paper, relationships between attribute reduction of decision tables and information quantity have been mainly discussed. In a consistent decision table, the euqivalence properties between algebraic representation and information quantity representation of attribute reduction are proved. Through examples, it shows that attribute reduction of an inconsistent decision table cannot entirely be represented by information quantity.
出处
《广西师范学院学报（自然科学版）》
2005年第2期35-38,共4页
Journal of Guangxi Teachers Education University(Natural Science Edition)
关键词
粗糙集
决策表
信息量
条件信息量
属性约简
rough set
decision table
information quantity
conditional information quantity
attribute reduction
