一种用于全局最小割的简单差分隐私算法
数据结构与算法
2022-08-24 v2 密码学与安全
摘要
在本短文中,我们提出一种简单的差分隐私算法用于全局最小割问题,仅使用一次指数机制调用。该问题最早由Gupta等人[2010]研究,他们给出了具有近最优效用保证的差分隐私算法。我们在多方面改进了他们的工作:我们的算法比Gupta等人[2010]中的算法更简单、更自然、更高效,并且提供了略优的隐私与效用保证。
引用
@article{arxiv.2208.09365,
title = {A Simple Differentially Private Algorithm for Global Minimum Cut},
author = {George Z. Li},
journal= {arXiv preprint arXiv:2208.09365},
year = {2022}
}
备注
There is an error in the privacy argument. The algorithm only outputs t such that the minimum s-t cut (S_t,V-S_t) gives an O(log n/eps) approximation. There is currently no way to privately compute min s-t cut, so this doesn't do anything