研究表明，该方法在构建核心子集过程中所用的聚类次数远远超过作为对照的逐步聚类随机取样（SCR）法。
The results showed that constructing core subsets in the same sampling percentage , the cluster times of LDSS method were far more than those of the method of stepwise cluster based on random sampling ( SCR ) .
聚类取样