原始数据集 meaning in English

subset of the original date

That contains only the changes made to the original
，该数据集只包含对原始数据集进行的更改。
These tools require the testing data that you separated from the original dataset in the model - building step . for more information
这些工具要求使用您在模型生成步骤中从原始数据集内分离的测试数据。
The accuracy of the clustering algorithm : the accuracy of the clustering methods refers to the partitioning accuracy and destination of the original data set
聚类结果的精确性是指聚类分析对原始数据集进行划分后，各子类别间边界的明确性及各被聚类对象所属类别的准确性。