to solve the problem that the existing algorithms of mining association rules result in a number of rules, upper closed set of an item set and generalized association rule base were defined.
为了解决传统的关联规则挖掘中产生大量规则的问题,提出了项目集上闭集和广义关联规则基的概念,并得出了闭项目集的上闭集是它本身、上闭集是惟一的等性质。