关键词: 数据挖掘 关联规则 候选项集 频繁项集 闭项集 格论 闹项集格 关联规则挖掘算法 Apriori算法 事务数据库

Abstract: By analyzing the algorithm from candidate itemsets to frequent itemsets in the association rules, we introduce the lattice theory and its some conceptions and present a improved algorithm called close algorithm which prevent from generat from a large numb

Key words: Data mining, Association rule, Frequent itemset, Closed itemset, Candidate itemsel, Lattice theory, Closed itemset lattice