activity
20232026
most citedExtremal Mechanisms for Pointwise Maximal Leakage

12 citations · 12 across the 6 of their papers we have counts for

collaborators

8 papers

cs.IT2026

Contraction and Statistical Inference under Privacy for Uniformly Bounded Distributions

Leonhard Grosse, Sara Saeidian, Tobias J. Oechtering +1

We investigate -interior pointwise maximal leakage (PML) as a tool for contraction analyses and disclosure control. Based on the strong adversarial threat models from maximal le…

cs.IT2026

Dobrushin Coefficients of Private Mechanisms Beyond Local Differential Privacy

Leonhard Grosse, Sara Saeidian, Tobias J. Oechtering +1

We investigate Dobrushin coefficients of discrete Markov kernels that have bounded pointwise maximal leakage (PML) with respect to all distributions with a minimum probability mass…

cs.CR2025

Privacy Mechanism Design based on Empirical Distributions

Leonhard Grosse, Sara Saeidian, Mikael Skoglund +1

Pointwise maximal leakage (PML) is a per-outcome privacy measure based on threat models from quantitative information flow. Privacy guarantees with PML rely on knowledge about the…

cs.CR2025

A Tight Context-aware Privacy Bound for Histogram Publication

Sara Saeidian, Ata Yavuzyılmaz, Leonhard Grosse +2

We analyze the privacy guarantees of the Laplace mechanism releasing the histogram of a dataset through the lens of pointwise maximal leakage (PML). While differential privacy is c…

cs.IT2025

Bounds on the privacy amplification of arbitrary channels via the contraction of -divergence

Leonhard Grosse, Sara Saeidian, Tobias J. Oechtering +1

We examine the privacy amplification of channels that do not necessarily satisfy any LDP guarantee by analyzing their contraction behavior in terms of -divergence, an -dive…

cs.IT2024

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…

cs.IT2024

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…

cs.IT2023★ 12 cited

Extremal Mechanisms for Pointwise Maximal Leakage

Leonhard Grosse, Sara Saeidian, Tobias Oechtering

Data publishing under privacy constraints can be achieved with mechanisms that add randomness to data points when released to an untrusted party, thereby decreasing the data's util…