A comprehensive survey on local differential privacy toward data statistics and analysis

T Wang, X Zhang, J Feng, X Yang - Sensors, 2020 - mdpi.com
Collecting and analyzing massive data generated from smart devices have become
increasingly pervasive in crowdsensing, which are the building blocks for data-driven …

Private and polynomial time algorithms for learning Gaussians and beyond

H Ashtiani, C Liaw - Conference on Learning Theory, 2022 - proceedings.mlr.press
We present a fairly general framework for reducing $(\varepsilon,\delta) $-differentially
private (DP) statistical estimation to its non-private counterpart. As the main application of …

A private and computationally-efficient estimator for unbounded gaussians

G Kamath, A Mouzakis, V Singhal… - … on Learning Theory, 2022 - proceedings.mlr.press
We give the first polynomial-time, polynomial-sample, differentially private estimator for the
mean and covariance of an arbitrary Gaussian distribution $ N (\mu,\Sigma) $ in $\R^ d $. All …

Friendlycore: Practical differentially private aggregation

E Tsfadia, E Cohen, H Kaplan… - International …, 2022 - proceedings.mlr.press
Differentially private algorithms for common metric aggregation tasks, such as clustering or
averaging, often have limited practicality due to their complexity or to the large number of …

Differentially private clustering: Tight approximation ratios

B Ghazi, R Kumar… - Advances in Neural …, 2020 - proceedings.neurips.cc
We study the task of differentially private clustering. For several basic clustering problems,
including Euclidean DensestBall, 1-Cluster, k-means, and k-median, we give efficient …

Differential privacy from locally adjustable graph algorithms: k-core decomposition, low out-degree ordering, and densest subgraphs

L Dhulipala, QC Liu, S Raskhodnikova… - 2022 IEEE 63rd …, 2022 - ieeexplore.ieee.org
Differentially private algorithms allow large-scale data analytics while preserving user
privacy. Designing such algorithms for graph data is gaining importance with the growth of …

On the sample complexity of privately learning unbounded high-dimensional gaussians

I Aden-Ali, H Ashtiani, G Kamath - Algorithmic Learning …, 2021 - proceedings.mlr.press
We provide sample complexity upper bounds for agnostically learning multivariate
Gaussians under the constraint of approximate differential privacy. These are the first finite …

Locally private k-means clustering

U Stemmer - Journal of Machine Learning Research, 2021 - jmlr.org
We design a new algorithm for the Euclidean k-means problem that operates in the local
model of differential privacy. Unlike in the non-private literature, differentially private …

Improving federated learning face recognition via privacy-agnostic clusters

Q Meng, F Zhou, H Ren, T Feng, G Liu, Y Lin - arXiv preprint arXiv …, 2022 - arxiv.org
The growing public concerns on data privacy in face recognition can be greatly addressed
by the federated learning (FL) paradigm. However, conventional FL methods perform poorly …

Locally private k-means in one round

A Chang, B Ghazi, R Kumar… - … on machine learning, 2021 - proceedings.mlr.press
We provide an approximation algorithm for k-means clustering in the\emph {one-
round}(aka\emph {non-interactive}) local model of differential privacy (DP). Our algorithm …