摘要
当同时研究项集A、B间的正、负关联规则(A B、A┐B、┐AB及┐A┐B)时,置信度的设置问题变得非常重要。当A,B的支持度变化时,四种关联规则的置信度如何变化,它们之间有着怎样的联系,对此进行了详细讨论,结论对置信度的设置有重要价值。
How to setup the confidence becomes very important when the positive & negative association rules(the form of A B,A ┐B,┐ A B and ┐A ┐B) are simultaneously studied between itemsets A and B. When the supports of itemsets A and B change, what will the confidences of the four rules change? What relationships are there among the four confidences? This paper discusses these questions in detail and d raws a lot useful conclusions.
出处
《计算机应用研究》
CSCD
北大核心
2005年第7期34-35,47,共3页
Application Research of Computers
基金
国家"973"计划资助项目(G1998030414)
关键词
负关联规则
置信度
支持度
Negative Association Rules
Confidence
Support
