unnecessary interaction meaning in English

不必要的交互作用

According to some strategy , dcm divides frequent itemsets lk into three non - intersect subsets thus the generation of most candidates can be localized in each individual subset and some unnecessary interactions between subsets are avoided ; moreover , most of the cut - off actions are also localized in each subset and we do n ' t need to scan the whole set lk as before
这样，大部分候选项目集的生成可以分别在这三个子集上进行，从而避免一些子集之间的连接；同时大部分的剪枝也可以分别局限在每个子集上单独进行检索，避免在整个l _ k搜索而耗费时间。