arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.08598cs.CRcs.LGstat.ME
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实用的差异私有因果图发现

Towards practical differentially private causal graph discovery

University of California, Berkeley(加州大学伯克利分校);Zhejiang University(浙江大学)

Lun Wang, Qi Pang, Dawn Song

摘要:

因果图发现是指从纯观测数据中发现因果关系图的过程。与其他统计数据一样,因果图可能会泄露有关数据集中参与者的敏感信息。在本文中,我们提出了一个不同的私人因果图发现算法,Priv-PC,它提高了实用程序和运行时间相比,国家的最先进的。Priv-PC的设计遵循一种新的范式称为筛选和检查,使用少量的隐私预算,以过滤出“无关紧要”的查询,并利用剩余的预算,以获得高度准确的答案的“重要”的查询。我们还进行了第一次敏感性分析的条件独立性测试,包括条件肯德尔的tau和条件斯皮尔曼的rho。我们在4个公开数据集上对Priv-PC进行了评估,并与最先进的数据集进行了比较。结果表明,Priv-PC实现了10.61到32.85倍的加速比和更好的实用性。

英文摘要:

Causal graph discovery refers to the process of discovering causal relation graphs from purely observational data. Like other statistical data, a causal graph might leak sensitive information about participants in the dataset. In this paper, we present a differentially private causal graph discovery algorithm, Priv-PC, which improves both utility and running time compared to the state-of-the-art. The design of Priv-PC follows a novel paradigm called sieve-and-examine which uses a small amount of privacy budget to filter out "insignificant" queries, and leverages the remaining budget to obtain highly accurate answers for the "significant" queries. We also conducted the first sensitivity analysis for conditional independence tests including conditional Kendall's tau and conditional Spearman's rho. We evaluated Priv-PC on 4 public datasets and compared with the state-of-the-art. The results show that Priv-PC achieves 10.61 to 32.85 times speedup and better 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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