7 papers · 1 filter
An Extension of the Adversarial Threat Model in Quantitative Information Flow
Mohammad Amin Zarrabian, Parastoo Sadeghi
In this paper, we propose an extended framework for quantitative information flow (QIF), aligned with the previously proposed core-concave generalization of entropy measures, to in…
An Algorithm for Enhancing Privacy-Utility Tradeoff in the Privacy Funnel and Other Lift-based Measures
Mohammad Amin Zarrabian, Parastoo Sadeghi
This paper investigates the privacy funnel, a privacy-utility tradeoff problem in which mutual information quantifies both privacy and utility. The objective is to maximize utility…
-leakage by Rényi Divergence and Sibson Mutual Information
Ni Ding, Mohammad Amin Zarrabian, Parastoo Sadeghi
For , this paper proposes a -mean information gain measure. Rényi divergence is shown to be the maximum -mean information g…
Information Density Bounds for Privacy
Sara Saeidian, Leonhard Grosse, Parastoo Sadeghi +2
This paper explores the implications of guaranteeing privacy by imposing a lower bound on the information density between the private and the public data. We introduce a novel and…
Privacy-Utility Tradeoff Based on -lift
Mohammad Amin Zarrabian, Parastoo Sadeghi
Information density and its exponential form, known as lift, play a central role in information privacy leakage measures. -lift is the power-mean of lift, which is tunable betwe…
Quantifying Privacy via Information Density
Leonhard Grosse, Sara Saeidian, Parastoo Sadeghi +2
We examine the relationship between privacy metrics that utilize information density to measure information leakage between a private and a disclosed random variable. Firstly, we p…
A Cross Entropy Interpretation of R{é}nyi Entropy for -leakage
Ni Ding, Mohammad Amin Zarrabian, Parastoo Sadeghi
This paper proposes an -leakage measure for by a cross entropy interpretation of R{é}nyi entropy. While Rényi entropy was originally defined as an -mean for…