super set meaning in Chinese

母集

Effects of wh super set - retarding agent on hydration proceeding of portland cement
型超缓凝剂对硅酸盐水泥水化过程的影响
Super set of iemset x ) according to constrained subtree of itemset x , if item “ a ” isn ’ t a fuzzy item , we don ’ t scan database in addition . it can be generated by ffp tree . we propose two order methods for constructing ffp tree . one is that sorting database attributes holding frequent item in ascending order of their nodes number in ffp tree . another is that sorting frequent item of not fuzzy attributes in descending order of their support firstly , then sorting database fuzzy attributes with frequent item in ascending order of their nodes number in ffp tree . our experimental results show that although fmf needs more space costly than the algorithms based on apriori , its time costly is obviously lower than the latter
针对ffp -树的生成,提出了两种排序方法:按属性顺序将每个属性下的频繁项目依次插入到头表中,属性按照其在ffp -树中可能的不同结点的个数从少到多进行排序;先对非模糊属性下的频繁项目按支持度从大到小进行排序,再对模糊属性按其在ffp -树中包含的不同结点的个数,从少到多进行排序,然后依次将各属性下的频繁项目插入到头表中。