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Achieving Differential Privacy with Matrix Masking in Big Data. (arXiv:2201.04211v1 [cs.CR])
Jan. 13, 2022, 2:20 a.m. | A. Adam Ding, Samuel S. Wu, Guanhong Miao, Shigang Chen
cs.CR updates on arXiv.org arxiv.org
Differential privacy schemes have been widely adopted in recent years to
address issues of data privacy protection. We propose a new Gaussian scheme
combining with another data protection technique, called random orthogonal
matrix masking, to achieve $(\varepsilon, \delta)$-differential privacy (DP)
more efficiently. We prove that the additional matrix masking significantly
reduces the rate of noise variance required in the Gaussian scheme to achieve
$(\varepsilon, \delta)-$DP in big data setting. Specifically, when $\varepsilon
\to 0$, $\delta \to 0$, and the sample …
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