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关联规则相关性的度量
Measurement of association rules correlation
【摘要】 用Apriori算法生成的关联规则包含有无用规则,甚至误导规则。为了使生成的规则更有效,引入了统计学中的卡方检验从统计意义上检验规则是否关联,并找到卡方检验值与相关系数的数量关系,实现了两种方法的统一,并用基于相关系数的算法去生成关联规则。
【Abstract】 Association rules generated by Apriori algorithm includes some useless and even misleading rules.To gain more effective rules,a statistical criteria,Chi-Squared was used to measure the associations,furthermore the quantitative relations between the Chi-Squred test and correlation coefficient was found out,and two measures was united to generate association rules with correlation coefficient.
【关键词】 关联规则;
相关度;
卡方检验;
相关系数;
【Key words】 association rules; correlation; chi-squared test; correlation coefficient;
【Key words】 association rules; correlation; chi-squared test; correlation coefficient;
- 【文献出处】 计算机应用 ,Journal of Computer Applications , 编辑部邮箱 ,2007年04期
- 【分类号】TP18
- 【被引频次】26
- 【下载频次】395