解析字符串分成部分，只有连续的话，不是一个幂集。
Parsing a string into parts, only consecutive words, not a power set.
左半正规纯正半群是幂等元集形成左半正规带的纯正半群。
A left seminormal orthodox semigroup is an orthodox semigroup whose idempotents form a left seminormal band.
首次提出了利用幂集作为挖掘关联规则的工具，给出了基于幂集的关联规则挖掘算法。
This paper firstly presents a power set-based association rules mining algorithm which USES pow er set as an association rules mining tool.
应用推荐