摘要
针对元规则的实例是采用元规则制导数据挖掘的一个关键问题,讨论了当前元规则的实例方法,指出元规则中相同属性变元的实例不仅受关系中属性的数据类型约束,而且受属性值集的约束.提出了关系表的连接属性概念以及相关理论,在此基础上设计了一种元规则的实例方法,并通过实例验证了它的有效性.该方法能够大大削减元规则的候选实例集.
To the meta rule instantiation of meta-rule-guided data mining, the current methods to instantiate meta rule are discussed. It is pointed out that, besides data type of attribute, the set of attribute value restricts the instantiation of the same attribute variable of meta rule. The notion of connected attributes between relation tables and relative theories are proposed, based on which a method of instan meta rule is given. An example shows that the proposed method is effective and can greatly reduce the size of meta rule candidate instantiation set.
出处
《控制与决策》
EI
CSCD
北大核心
2005年第10期1120-1124,共5页
Control and Decision
基金
国家科技部项目(2002ED691036)
关键词
元规则
数据挖掘
连接属性
元查询
元模式
Meta rule
Data mining
Connected attributes
Metaquery
Meta pattern
