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arXiv 1809.02575cs.CRcs.DS
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图统计量的差分私有连续释放

Differentially Private Continual Release of Graph Statistics

Shuang Song, Susan Little, Sanjay Mehta, Staal Vinterbo, Kamalika Chaudhuri

摘要:

出于了解敏感的社交网络随着时间的推移的动态,我们考虑的问题,不断发布的统计数据在网络上到达,同时保护其参与者的隐私。对于我们的隐私概念,我们使用差分隐私--统计数据分析的隐私黄金标准。这个问题的主要挑战是保持良好的隐私-效用权衡;跨时间组合的幼稚解决方案以及适合表格数据的解决方案要么导致效用差,要么不直接适用。在这项工作中,我们表明,如果在整个网络序列中任何节点的最大度上存在一个公开的上限,那么我们可以连续发布许多常见的图统计数据,如度分布和子图计数,并具有更好的隐私准确性权衡。代码可在https://bitbucket.org/shs037/graphprivacycode获得

英文摘要:

Motivated by understanding the dynamics of sensitive social networks over time, we consider the problem of continual release of statistics in a network that arrives online, while preserving privacy of its participants. For our privacy notion, we use differential privacy -- the gold standard in privacy for statistical data analysis. The main challenge in this problem is maintaining a good privacy-utility tradeoff; naive solutions that compose across time, as well as solutions suited to tabular data either lead to poor utility or do not directly apply. In this work, we show that if there is a publicly known upper bound on the maximum degree of any node in the entire network sequence, then we can release many common graph statistics such as degree distributions and subgraph counts continually with a better privacy-accuracy tradeoff. Code available at https://bitbucket.org/shs037/graphprivacycode

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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