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Density-adaptive domain discretization is essential for high-utility privacy-preserving analytics but remains challenging under Local Differential Privacy (LDP) due to the privacy-budget costs associated with iterative refinement. We…

机器学习 · 计算机科学 2026-02-24 Alexey Kroshnin , Alexandra Suvorikova

Federated learning (FL) enhances privacy by keeping user data on local devices. However, emerging attacks have demonstrated that the updates shared by users during training can reveal significant information about their data. This has…

The problem of estimating a parameter in the drift coefficient is addressed for $N$ discretely observed independent and identically distributed stochastic differential equations (SDEs). This is done considering additional constraints,…

统计理论 · 数学 2024-10-17 Chiara Amorino , Arnaud Gloter , Hélène Halconruy

Local differential privacy (LDP) involves users perturbing their inputs to provide plausible deniability of their data. However, this also makes LDP vulnerable to poisoning attacks. In this paper, we first introduce novel poisoning attacks…

密码学与安全 · 计算机科学 2025-07-01 Pei Zhan , Peng Tang , Yangzhuo Li , Puwen Wei , Shanqing Guo

The collection and analysis of telemetry data from users' devices is routinely performed by many software companies. Telemetry collection leads to improved user experience but poses significant risks to users' privacy. Locally…

密码学与安全 · 计算机科学 2017-12-06 Bolin Ding , Janardhan Kulkarni , Sergey Yekhanin

Federated learning (FL) allows to train a massive amount of data privately due to its decentralized structure. Stochastic gradient descent (SGD) is commonly used for FL due to its good empirical performance, but sensitive user information…

机器学习 · 计算机科学 2021-02-10 Muah Kim , Onur Günlü , Rafael F. Schaefer

Federated Learning (FL) allows multiple participants to train machine learning models collaboratively by keeping their datasets local while only exchanging model updates. Alas, this is not necessarily free from privacy and robustness…

密码学与安全 · 计算机科学 2022-05-30 Mohammad Naseri , Jamie Hayes , Emiliano De Cristofaro

Train machine learning models on sensitive user data has raised increasing privacy concerns in many areas. Federated learning is a popular approach for privacy protection that collects the local gradient information instead of real data.…

密码学与安全 · 计算机科学 2021-05-24 Lichao Sun , Jianwei Qian , Xun Chen

Molecular communication (MC) enables information exchange in nanoscale sensor networks operating in biological environments, yet privacy remains largely unaddressed. We integrate local differential privacy (LDP) into diffusion-based MC by…

信息论 · 计算机科学 2026-03-03 Melih Şahin , Ozgur B. Akan

The development of Internet technology enables an analysis on the whole population rather than a certain number of samples, and leads to increasing requirement for privacy protection. Local differential privacy (LDP) is an effective…

密码学与安全 · 计算机科学 2023-03-06 She Sun , Li Zhou , Xiaoran Yan

We study locally differentially private algorithms for reinforcement learning to obtain a robust policy that performs well across distributed private environments. Our algorithm protects the information of local agents' models from being…

机器学习 · 计算机科学 2020-02-03 Hajime Ono , Tsubasa Takahashi

While the existing literature on Differential Privacy (DP) auditing predominantly focuses on the centralized model (e.g., in auditing the DP-SGD algorithm), we advocate for extending this approach to audit Local DP (LDP). To achieve this,…

密码学与安全 · 计算机科学 2024-07-15 Héber H. Arcolezi , Sébastien Gambs

Differential privacy is achieved by the introduction of Laplacian noise in the response to a query, establishing a precise trade-off between the level of differential privacy and the accuracy of the database response (via the amount of…

密码学与安全 · 计算机科学 2015-10-06 Maurizio Naldi , Giuseppe D'Acquisto

Local differential privacy (LDP) gives a strong privacy guarantee to be used in a distributed setting like federated learning (FL). LDP mechanisms in FL protect a client's gradient by randomizing it on the client; however, how can we…

密码学与安全 · 计算机科学 2022-06-22 Marin Matsumoto , Tsubasa Takahashi , Seng Pei Liew , Masato Oguchi

Local differential privacy (LDP) has emerged as a promising paradigm for privacy-preserving data collection in distributed systems, where users contribute multi-dimensional records with potentially correlated attributes. Recent work has…

密码学与安全 · 计算机科学 2025-08-20 Sandaru Jayawardana , Sennur Ulukus , Ming Ding , Kanchana Thilakarathna

Differentially Private Federated Learning (DP-FL) has garnered attention as a collaborative machine learning approach that ensures formal privacy. Most DP-FL approaches ensure DP at the record-level within each silo for cross-silo FL.…

机器学习 · 计算机科学 2024-06-18 Fumiyuki Kato , Li Xiong , Shun Takagi , Yang Cao , Masatoshi Yoshikawa

Distributed data analysis is a large and growing field driven by a massive proliferation of user devices, and by privacy concerns surrounding the centralised storage of data. We consider two \emph{adaptive} algorithms for estimating one…

密码学与安全 · 计算机科学 2025-02-06 Anders Aamand , Fabrizio Boninsegna , Abigail Gentle , Jacob Imola , Rasmus Pagh

Local differential privacy (LDP) provides a way for an untrusted data collector to aggregate users' data without violating their privacy. Various privacy-preserving data analysis tasks have been studied under the protection of LDP, such as…

密码学与安全 · 计算机科学 2024-07-01 Wei Tong , Haoyu Chen , Jiacheng Niu , Sheng Zhong

Most deep learning frameworks require users to pool their local data or model updates to a trusted server to train or maintain a global model. The assumption of a trusted server who has access to user information is ill-suited in many…

机器学习 · 计算机科学 2020-06-26 Lingjuan Lyu , Yitong Li , Xuanli He , Tong Xiao

This article introduces differentially private log-location-scale (DP-LLS) regression models, which incorporate differential privacy into LLS regression through the functional mechanism. The proposed models are established by injecting…

机器学习 · 统计学 2024-04-16 Jiewen Sheng , Xiaolei Fang