基于扩展的嵌套关系代数的关联规则挖掘查询  

Association rule mining queries based on an extended nested relational algebra

作　　者：胡虚怀[1] 李焕[1] 杨志和[1] 

机构地区：[1]湖南理工学院计算机系,湖南岳阳414000

出　　处：《湖南理工学院学报（自然科学版）》2007年第4期32-36,共5页Journal of Hunan Institute of Science and Technology(Natural Sciences)

基　　金：湖南省自然科学基金资助项目(04JJ3064)

摘　　要：提出了一种使数据挖掘与数据库系统无缝集成的方案.该方案基于关联规则挖掘和关系数据库系统的通用查询算法,采用一种扩充的嵌套关系代数作为关联规则和其它数据查询的一种内部表达方式.通过一个典型实例展示了这种代数表达式.代数表达式也被表达为一种查询树,查询树中代数运算的公共操作序列模块化后,具有更多的灵活性,能方便地处理约束关联规则查询和其它各种关联规则描述.A scheme for seamless integration of data mining with database systems is presented. It is based on a common query algorithm for association rule mining and relational database systems, using an extended nested relational algebra for intemal representation of association rule and other data queries in the algorithm, The expressiveness of the algebra is shown by a examples of typical queries. The algebraic expressions also are presented as query trees, Modularization of common sequences of algebra operations in query trees is flexible enough to deal with constrained association rule queries and other variations of association rule specitications,

关 键 词：数据挖掘查询 关联规则 嵌套代数 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]