arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0903.0682cs.DBcs.CR
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串行数据发布中的个人隐私保护

Preserving Individual Privacy in Serial Data Publishing

Raymond Chi-Wing Wong, Ada Wai-Chee Fu, Jia Liu, Ke Wang, Yabo Xu

摘要:

虽然以前的隐私保护串行数据发布的工作考虑的情况下,敏感值可能会持续多个数据发布,我们发现,没有以前的工作提供了足够的保护敏感值,可以随时间变化,这应该是更常见的情况。在这项工作中,我们建议研究这种瞬态敏感值的隐私保证,我们称之为全球保证。我们正式定义的问题,实现这一保证,并得出这个问题的一些理论性质。我们发现,在数据匿名化中使用的匿名组的大小是一个关键因素,在保护个人隐私的连续出版物。我们提出了两种策略的匿名化目标在最小化的平均组大小和最大组大小。最后,我们在一个医疗数据集上进行了实验,结果表明,我们的方法是高效的,也产生了非常高实用性的已发布数据。

英文摘要:

While previous works on privacy-preserving serial data publishing consider the scenario where sensitive values may persist over multiple data releases, we find that no previous work has sufficient protection provided for sensitive values that can change over time, which should be the more common case. In this work we propose to study the privacy guarantee for such transient sensitive values, which we call the global guarantee. We formally define the problem for achieving this guarantee and derive some theoretical properties for this problem. We show that the anonymized group sizes used in the data anonymization is a key factor in protecting individual privacy in serial publication. We propose two strategies for anonymization targeting at minimizing the average group size and the maximum group size. Finally, we conduct experiments on a medical dataset to show that our method is highly efficient and also produces published data of very high utility.

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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