| 释义 |
itemset
基本例句
项集¹⁰⁰
The problem of fuzzy constraint in frequentitemsetmining is studied.摘要研究频繁项集挖掘中的模糊约束问题。
Setting this value to 0 specifies that there is no limit to the size of theitemset.将该值设置为0将指定对项集的大小没有限制。
Grahne G,Zhu Jian-fei.Fast algorithms for frequentitemsetmining using FP-Trees;.IEEE Transactions on Knowledge and Data Engineering,2005,10:1347.胥桂仙;高旭;于绍娜;关联规则算法在中文文本挖掘中的应用研究;.;中央民族大学学报;2004;13:332-338
For example, if everyitemsetcontains a specific state of an attribute, a rule that predicts state is trivial, even though the probability is very high.例如,如果每个项集都包含属性的某个特定状态,那么,即使概率非常高,预测状态的规则也并不重要。
Setting this value to a whole number greater than 1 specifies the minimum number of cases as the absolute number of cases that must contain theitemset.将该值设置为大于1的整数将指定最小事例数作为必须包含项集的事例的绝对数。
Further, based upon the desirable properties of closeditemsetlattices, a partition-based algorithm is developed, which proves to be highly efficient without information loss.提出了一个基于划分的高效算法，在信息无损的前提下提高算法的效率。 |