因此，以服务的形式提供数据清理需要进行很大的调整，因为需要为不同的数据集定制该工具(QualityStage Standardization RuleSet)。

Thus, offering data cleansing as a service has been a challenge because of the need to customize the tool (QualityStage Standardization RuleSets) for different datasets.

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gov提供了对于各类联邦数据集的汇总描述，指导人们如何获取这些数据，也提供调整这些数据集的工具。

Data.gov provides descriptions of the Federal datasets (metadata), information about how to access the datasets, and tools that leverage government datasets.

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