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arXiv 2207.03339cs.CRcs.LG
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合成数据与微观数据样本的效用与披露风险比较

Comparing the Utility and Disclosure Risk of Synthetic Data with Samples of Microdata

University of Manchester(曼彻斯特大学)

Claire Little, Mark Elliot, Richard Allmendinger

摘要:

大多数统计机构发布随机选择的人口普查微观数据样本,通常样本比例低于10%,并采用其他形式的统计披露控制。可持续发展数据的一种替代方法是数据综合,这一方法引起了越来越多的兴趣,但在如何衡量数据的相关效用和披露风险方面没有明确的共识。如果能够制作综合普查微观数据,并清楚了解其效用和相关风险,就可能意味着能够更及时、更广泛地获取微观数据。本文遵循作者以前的工作,将合成人口普查数据映射到风险效用(R-U)图上。本文提出了一个衡量合成数据的效用和披露风险的框架,通过将其与不同样本分数的原始数据样本进行比较,从而确定与合成数据具有等效效用和风险的样本分数。三个常用的数据综合软件包进行了比较,一些有趣的结果。需要在几个方向上进一步开展工作,但该方法看起来很有希望。

英文摘要:

Most statistical agencies release randomly selected samples of Census microdata, usually with sample fractions under 10% and with other forms of statistical disclosure control (SDC) applied. An alternative to SDC is data synthesis, which has been attracting growing interest, yet there is no clear consensus on how to measure the associated utility and disclosure risk of the data. The ability to produce synthetic Census microdata, where the utility and associated risks are clearly understood, could mean that more timely and wider-ranging access to microdata would be possible. This paper follows on from previous work by the authors which mapped synthetic Census data on a risk-utility (R-U) map. The paper presents a framework to measure the utility and disclosure risk of synthetic data by comparing it to samples of the original data of varying sample fractions, thereby identifying the sample fraction which has equivalent utility and risk to the synthetic data. Three commonly used data synthesis packages are compared with some interesting results. Further work is needed in several directions but the methodology looks very promising.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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