With data sampling, only a subset of the data is scanned.

通过数据抽样，只需扫描数据的一个子集即可。

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Constrained list. This component displays a subset of data elements constrained by some factor.

此组件用于显示受某个因素约束的数据元素子集。

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Whether a test data subset with optional privacy masking should be created.

是否创建带有可选屏蔽的测试数据子集。

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Every day this list is reviewed and every evening analysts send a subset of data to the FBI's Terrorist Screening Center (TSC) for use in a watch-list.

BBC: Security reforms on the way following 'jet bomber' case

Admittedly, the ADP report comes from a much smaller subset of data derived 500, 000 business employing over 21 million workers, while the government statistics aim to encompass the entire workforce.

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To achieve this, the company needed to run complex data mining models on a large volume of data, which took at least three weeks of processing time, even with a subset of the 2.8-petabyte data set.

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