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Data-driven methodologies offer many exciting upsides, but they also introduce new challenges, particularly in the realm of user privacy. Specifically, the way data is collected can pose privacy risks to end users. In many routing services,…

密码学与安全 · 计算机科学 2022-03-16 Matthew Tsao , Kaidi Yang , Karthik Gopalakrishnan , Marco Pavone

In real-world applications, perfect labels are rarely available, making it challenging to develop robust machine learning algorithms that can handle noisy labels. Recent methods have focused on filtering noise based on the discrepancy…

机器学习 · 计算机科学 2023-08-01 Mingcai Chen , Yuntao Du , Wei Tang , Baoming Zhang , Hao Cheng , Shuwei Qian , Chongjun Wang

Traditional approaches to differential privacy assume a fixed privacy requirement $\epsilon$ for a computation, and attempt to maximize the accuracy of the computation subject to the privacy constraint. As differential privacy is…

机器学习 · 计算机科学 2017-06-01 Katrina Ligett , Seth Neel , Aaron Roth , Bo Waggoner , Z. Steven Wu

We consider the problem of publicly releasing a dataset for support vector machine classification while not infringing on the privacy of data subjects (i.e., individuals whose private information is stored in the dataset). The dataset is…

密码学与安全 · 计算机科学 2020-01-01 Farhad Farokhi

Electric vehicles (EVs) are gaining popularity due to the growing awareness for a sustainable future. However, since there are disproportionately fewer charging stations than EVs, range anxiety plays a major role in the rise in the number…

密码学与安全 · 计算机科学 2024-02-07 Ugur Ilker Atmaca , Sayan Biswas , Carsten Maple , Catuscia Palamidessi

The Podium mechanism guarantees ($\epsilon, 0$)-differential privacy by sampling noise from a \emph{finite} mixture of three uniform distributions. By carefully constructing such a mixture distribution, we trivially guarantee privacy…

密码学与安全 · 计算机科学 2019-08-05 Vasyl Pihur

With recent advancements in technology, the threats of privacy violations of individuals' sensitive data are surging. Location data, in particular, have been shown to carry a substantial amount of sensitive information. A standard method to…

密码学与安全 · 计算机科学 2023-10-25 Sayan Biswas , Catuscia Palamidessi

We study the problem of Stochastic Convex Optimization (SCO) under the constraint of local Label Differential Privacy (L-LDP). In this setting, the features are considered public, but the corresponding labels are sensitive and must be…

数据结构与算法 · 计算机科学 2026-05-12 Lynn Chua , Badih Ghazi , Ravi Kumar , Pasin Manurangsi , Ziteng Sun , Chiyuan Zhang

A location histogram is comprised of the number of times a user has visited locations as they move in an area of interest, and it is often obtained from the user in applications such as recommendation and advertising. However, a location…

密码学与安全 · 计算机科学 2019-12-03 Grigorios Loukides , George Theodorakopoulos

Location-based services (LBSs) have become widely popular. Despite their utility, these services raise concerns for privacy since they require sharing location information with untrusted third parties. In this work, we study privacy-utility…

信息论 · 计算机科学 2019-10-07 Ecenaz Erdemir , Pier Luigi Dragotti , Deniz Gunduz

The local privacy mechanisms, such as k-RR, RAPPOR, and the geo-indistinguishability ones, have become quite popular thanks to the fact that the obfuscation can be effectuated at the users end, thus avoiding the need of a trusted third…

密码学与安全 · 计算机科学 2022-08-25 Ehab ElSalamouny , Catuscia Palamidessi

This paper proposes a privacy protection and evaluation method for location services based on edge computing environment. By constructing the site service data protection and system evaluation system in the edge computing environment, based…

密码学与安全 · 计算机科学 2022-12-08 Shuang Liu

This paper studies the design of an optimal privacyaware estimator of a public random variable based on noisy measurements which contain private information. The public random variable carries non-private information, however, its estimate…

最优化与控制 · 数学 2018-08-08 Ehsan Nekouei , Henrik Sandberg , Mikael Skoglund , Karl H. Johansson

Privacy-preserving distributed processing has received considerable attention recently. The main purpose of these algorithms is to solve certain signal processing tasks over a network in a decentralised fashion without revealing…

信号处理 · 电气工程与系统科学 2023-12-14 Sebastian O. Jordan , Qiongxiu Li , Richard Heusdens

We investigate an uplink MIMO-OFDM localization scenario where a legitimate base station (BS) aims to localize a user equipment (UE) using pilot signals transmitted by the UE, while an unauthorized BS attempts to localize the UE by…

信号处理 · 电气工程与系统科学 2025-03-05 Yuchen Zhang , Hui Chen , Musa Furkan Keskin , Alireza Pourafzal , Pinjun Zheng , Henk Wymeersch , Tareq Y. Al-Naffouri

We consider the problem of publishing location datasets, in particular 2D spatial pointsets, in a differentially private manner. Many existing mechanisms focus on frequency counts of the points in some a priori partition of the domain that…

密码学与安全 · 计算机科学 2011-11-30 Chengfang Fang , Ee-Chien Chang

Suppose that party A collects private information about its users, where each user's data is represented as a bit vector. Suppose that party B has a proprietary data mining algorithm that requires estimating the distance between users, such…

数据结构与算法 · 计算机科学 2018-07-16 Krishnaram Kenthapadi , Aleksandra Korolova , Ilya Mironov , Nina Mishra

To date, location privacy protection is a critical issue in Location-Based Services (LBS). In this work, we propose a novel geometric framework based on the classical discrete geometric structure, the Voronoi-Delaunay duality (VDD). We…

计算几何 · 计算机科学 2019-06-24 Wei Zeng , Abdur B. Shahid , Keyan Zolfaghari , Aditya Shetty , Niki Pissinou , Sitharama S. Iyengar

Extremely large-scale arrays (XL-arrays) have emerged as a promising technology to improve the spectrum efficiency and spatial resolution of future wireless systems. Different from existing works that mostly considered physical layer…

信号处理 · 电气工程与系统科学 2025-05-06 Tianyu Liu , Changsheng You , Cong Zhou , Yunpu Zhang , Shiqi Gong , Heng Liu , Guangchi Zhang

Federated Learning, as a popular paradigm for collaborative training, is vulnerable against privacy attacks. Different privacy levels regarding users' attitudes need to be satisfied locally, while a strict privacy guarantee for the global…

密码学与安全 · 计算机科学 2023-05-29 Yixuan Liu , Suyun Zhao , Li Xiong , Yuhan Liu , Hong Chen
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