the positive association rules 正关联规则 收藏 Rules for rounding off of numberical values 数值修约规则 收藏 .
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The negative items are introduced to expressions, and the traditional association rules are expanded to the general association rules with positive and negative items.
在表达式中引入负项目，将这种传统的关联规则扩展成包含正、负项目的一般化关联规则。
According to the value of consult, association rules were classified into positive, negative and invalid association rules. The new algorithm could find out the negative-item-contained rules.
利用参考度将关联规则分为正关联规则、负关联规则和无效关联规则，从而可以用算法挖掘带有负项的关联规则。
On the relevance of data, association rules have positive or negative association rules.
关联规则就数据项之间的相关性来说，可以有正负关联规则之分。
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