合取范式(conjunctive normal form,CNF) :一个由原子和原 子的非组成的合取式,如果与给定的命题公式A等价,则称它 是A的合取范式。
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... 合取概括 conjunctive generalization 合取正常形式 conjunctive normal form,CNF 合取查询 conjunctive query ...
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prenex-conjunctive normal form 前束合取范式
quantifier-free conjunctive normal form 自由量词合取范式
CNF-conjunctive normal form 合取范式
Special Conjunctive Normal Form 主合取范式
distinguished conjunctive normal form 杰异合取范式
quantifier-free conjunctive-normal form [计] 自由量词合取范式
cnf conjunctive normal form 连接标准形式
When the constraint expression of a query is not a CNF (Conjunctive Normal Form),it is generally transformed into an equivalent DNF (disjunctive normal form)an union of CNFs .
当数据立方查询条件不是合取范式时,一般是将它转化成为若干合取范式的并的形式(析取范式)。
参考来源 - 一种数据立方查询条件优化策略 in C·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
This paper presents a fast and efficient algorithm for discovering exceptional rules from data sets. This algorithm permits that the consequent of a rule is a conjunctive normal form.
文章提出一种快速有效发现意外规则的算法,该算法允许规则的结果为合取范式。
With respect to the principal disjunctive normal form and the principal conjunctive normal form, we also approach the properties of the subscript sets derived from the minimum term and maximum term.
讨论了命题公式的主析取范式、主合取范式中的极小项与极大项下标集合的性质,利用主范式的下标集合得到了命题公式蕴涵的几个充要条件。
Aiming at the problem of equivalent conversion from conjunctive normal form to disjunctive normal form, an effective algorithm was proposed to construct reduction tree based on discernibility matrix.
针对差别矩阵求约简过程中合取范式向析取范式等价转换的难题,提出一种基于差别矩阵构造约简树的有效方法。
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