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Gaussian processes (GPs) are non-parametric Bayesian models that are widely used for diverse prediction tasks. Previous work in adding strong privacy protection to GPs via differential privacy (DP) has been limited to protecting only the…

机器学习 · 计算机科学 2021-11-12 Antti Honkela , Laila Melkas

Trajectory data, which tracks movements through geographic locations, is crucial for improving real-world applications. However, collecting such sensitive data raises considerable privacy concerns. Local differential privacy (LDP) offers a…

密码学与安全 · 计算机科学 2025-03-11 I-Jung Hsu , Chih-Hsun Lin , Chia-Mu Yu , Sy-Yen Kuo , Chun-Ying Huang

Gait recognition aims to identify a person at a distance, serving as a promising solution for long-distance and less-cooperation pedestrian recognition. Recently, significant advancements in gait recognition have achieved inspiring success…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Chuanfu Shen , Shiqi Yu , Jilong Wang , George Q. Huang , Liang Wang

With the increasing popularity of GPS-enabled hand-held devices, location-based applications and services have access to accurate and real-time location information, raising serious privacy concerns for their millions of users. Trying to…

密码学与安全 · 计算机科学 2014-06-17 Konstantinos Chatzikokolakis , Catuscia Palamidessi , Marco Stronati

The development of positioning technologies has resulted in an increasing amount of mobility data being available. While bringing a lot of convenience to people's life, such availability also raises serious concerns about privacy. In this…

密码学与安全 · 计算机科学 2017-09-07 Michael Backes , Mathias Humbert , Jun Pang , Yang Zhang

Location data privacy has become a serious concern for users as Location Based Services (LBSs) have become an important part of their life. It is possible for malicious parties having access to geolocation data to learn sensitive…

密码学与安全 · 计算机科学 2023-09-13 Alban Héon , Ryan Sheatsley , Quinn Burke , Blaine Hoak , Eric Pauley , Yohan Beugin , Patrick McDaniel

The proliferation of smartphone devices has led to the emergence of powerful user services from enabling interactions with friends and business associates to mapping, finding nearby businesses and alerting users in real-time. Moreover,…

密码学与安全 · 计算机科学 2023-02-13 Dimitrios Tomaras , Michail Tsenos , Vana Kalogeraki

Providing meaningful privacy to users of location based services is particularly challenging when multiple locations are revealed in a short period of time. This is primarily due to the tremendous degree of dependence that can be…

机器学习 · 计算机科学 2019-12-10 Casey Meehan , Kamalika Chaudhuri

Many modern statistical analysis and machine learning applications require training models on sensitive user data. Under a formal definition of privacy protection, differentially private algorithms inject calibrated noise into the…

机器学习 · 统计学 2025-04-01 Yifei Xiong , Nianqiao Phyllis Ju , Sanguo Zhang

A major feature of the emerging geo-social networks is the ability to notify a user when one of his friends (also called buddies) happens to be geographically in proximity with the user. This proximity service is usually offered by the…

数据库 · 计算机科学 2010-11-09 Sergio Mascetti , Dario Freni , Claudio Bettini , X. Sean Wang , Sushil Jajodia

In autonomous driving, behavior prediction is fundamental for safe motion planning, hence the security and robustness of prediction models against adversarial attacks are of paramount importance. We propose a novel adversarial backdoor…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Mozhgan Pourkeshavarz , Mohammad Sabokrou , Amir Rasouli

The membership inference problem for publicly released statistics from a private dataset is well-studied. When developing and formally analyzing attack strategies, however, the focus has been on attacks that model the population using only…

密码学与安全 · 计算机科学 2026-05-29 Lisa Oakley , Sam Stites , Cameron Moy , Steven Holtzen , Alina Oprea , Marco Gaboardi

Graph Neural Networks (GNNs) have gained significant attention owing to their ability to handle graph-structured data and the improvement in practical applications. However, many of these models prioritize high utility performance, such as…

机器学习 · 计算机科学 2023-09-20 Yi Zhang , Yuying Zhao , Zhaoqing Li , Xueqi Cheng , Yu Wang , Olivera Kotevska , Philip S. Yu , Tyler Derr

We propose a new framework for Bayesian estimation of differential privacy, incorporating evidence from multiple membership inference attacks (MIA). Bayesian estimation is carried out via a Markov chain Monte Carlo (MCMC) algorithm, named…

机器学习 · 计算机科学 2025-11-04 Ceren Yildirim , Kamer Kaya , Sinan Yildirim , Erkay Savas

The success of deep neural networks has driven numerous research studies and applications from Euclidean to non-Euclidean data. However, there are increasing concerns about privacy leakage, as these networks rely on processing private data.…

机器学习 · 计算机科学 2025-11-03 Zhanke Zhou , Jianing Zhu , Fengfei Yu , Xuan Li , Xiong Peng , Tongliang Liu , Bo Han

Large genomic datasets are now created through numerous activities, including recreational genealogical investigations, biomedical research, and clinical care. At the same time, genomic data has become valuable for reuse beyond their…

密码学与安全 · 计算机科学 2021-12-28 Rajagopal Venkatesaramani , Zhiyu Wan , Bradley A. Malin , Yevgeniy Vorobeychik

An increasing amount of mobility data is being collected every day by different means, e.g., by mobile phone operators. This data is sometimes published after the application of simple anonymization techniques, which might lead to severe…

密码学与安全 · 计算机科学 2016-11-17 Vincent Primault , Sonia Ben Mokhtar , Lionel Brunie

The Internet of Things (IoT) promises to improve user utility by tuning applications to user behavior, but revealing the characteristics of a user's behavior presents a significant privacy risk. Our previous work has established the…

密码学与安全 · 计算机科学 2020-07-14 Nazanin Takbiri , Minting Chen , Dennis L. Goeckel , Amir Houmansadr , Hossein Pishro-Nik

Many popular applications use traces of user data to offer various services to their users. However, even if user data is anonymized and obfuscated, a user's privacy can be compromised through the use of statistical matching techniques that…

信息论 · 计算机科学 2018-06-29 Nazanin Takbiri , Amir Houmansadr , Dennis L. Goeckel , Hossein Pishro-Nik

Collection of user's location and trajectory information that contains rich personal privacy in mobile social networks has become easier for attackers. Network traffic control is an important network system which can solve some security and…

密码学与安全 · 计算机科学 2018-04-09 Qilong Han , Qianqian Chen , Kejia Zhang , Xiaojiang Du , Nadra Guizani