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Differential privacy (DP) allows data analysts to query databases that contain users' sensitive information while providing a quantifiable privacy guarantee to users. Recent interactive DP systems such as APEx provide accuracy guarantees…

Cryptography and Security · Computer Science 2022-11-30 Miti Mazmudar , Thomas Humphries , Jiaxiang Liu , Matthew Rafuse , Xi He

Differential privacy (DP) has become the gold standard in privacy-preserving data analytics, but implementing it in real-world datasets and systems remains challenging. Recently developed DP tools aim to make DP implementation easier, but…

Human-Computer Interaction · Computer Science 2024-08-14 Ivoline C. Ngong , Brad Stenger , Joseph P. Near , Yuanyuan Feng

Streaming data, crucial for applications like crowdsourcing analytics, behavior studies, and real-time monitoring, faces significant privacy risks due to the large and diverse data linked to individuals. In particular, recent efforts to…

Cryptography and Security · Computer Science 2024-07-23 Shuya Feng , Meisam Mohammady , Han Wang , Xiaochen Li , Zhan Qin , Yuan Hong

The collection of individuals' data has become commonplace in many industries. Local differential privacy (LDP) offers a rigorous approach to preserving privacy whereby the individual privatises their data locally, allowing only their…

Machine Learning · Computer Science 2022-05-17 Alex Mansbridge , Gregory Barbour , Davide Piras , Michael Murray , Christopher Frye , Ilya Feige , David Barber

Although differential privacy (DP) is widely regarded as the de facto standard for data privacy, its implementation remains vulnerable to unfaithful execution by servers, particularly in distributed settings. In such cases, servers may…

Cryptography and Security · Computer Science 2025-11-04 Haochen Sun , Xi He

This paper demonstrates the effectiveness of our customized deep learning based video analytics system in various applications focused on security, safety, customer analytics and process compliance. We describe our video analytics system…

Computer Vision and Pattern Recognition · Computer Science 2018-06-28 Pratik Dubal , Rohan Mahadev , Suraj Kothawade , Kunal Dargan , Rishabh Iyer

Providing a provable privacy guarantees while maintaining the utility of data is a challenging task in many real-world applications. Recently, a new framework called One-Sided Differential Privacy (OSDP) was introduced that extends existing…

Cryptography and Security · Computer Science 2021-12-21 Phillip Lee , Kevin Smith

Differential Privacy (DP) provides a rigorous framework for releasing statistics while protecting individual information present in a dataset. Although substantial progress has been made on differentially private linear regression, existing…

Statistics Theory · Mathematics 2026-01-16 Getoar Sopa , Marco Avella Medina , Cynthia Rush

Systems that give control of a mobile robot to a remote user raise privacy concerns about what the remote user can see and do through the robot. We aim to preserve some of that privacy by manipulating the video data that the remote user…

In this paper, we study the problem of publishing a stream of real-valued data satisfying differential privacy (DP). One major challenge is that the maximal possible value can be quite large; thus it is necessary to estimate a threshold so…

Cryptography and Security · Computer Science 2023-12-11 Tianhao Wang , Joann Qiongna Chen , Zhikun Zhang , Dong Su , Yueqiang Cheng , Zhou Li , Ninghui Li , Somesh Jha

The existing methods for video anomaly detection mostly utilize videos containing identifiable facial and appearance-based features. The use of videos with identifiable faces raises privacy concerns, especially when used in a hospital or…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Pratik K. Mishra , Alex Mihailidis , Shehroz S. Khan

Data valuation methods quantify how individual training examples contribute to a model's behavior, and are increasingly used for dataset curation, auditing, and emerging data markets. As these techniques become operational, they raise…

Cryptography and Security · Computer Science 2026-03-03 Yiwei Fu , Tianhao Wang , Varun Chandrasekaran

Suppose each user $i$ holds a private value $x_i$ in some metric space $(U, \mathrm{dist})$, and an untrusted data analyst wishes to compute $\sum_i f(x_i)$ for some function $f : U \rightarrow \mathbb{R}$ by asking each user to send in a…

Cryptography and Security · Computer Science 2024-05-13 Yuting Liang , Ke Yi

Video Anomaly Detection (VAD) aims to automatically analyze spatiotemporal patterns in surveillance videos collected from open spaces to detect anomalous events that may cause harm, such as fighting, stealing, and car accidents. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Yang Liu , Siao Liu , Xiaoguang Zhu , Jielin Li , Hao Yang , Liangyu Teng , Juncen Guo , Yan Wang , Dingkang Yang , Jing Liu

Differential privacy is a widely adopted framework designed to safeguard the sensitive information of data providers within a data set. It is based on the application of controlled noise at the interface between the server that stores and…

Cryptography and Security · Computer Science 2024-05-06 Rūta Binkytė , Carlos Pinzón , Szilvia Lestyán , Kangsoo Jung , Héber H. Arcolezi , Catuscia Palamidessi

With the rise of cameras and smart sensors, humanity generates an exponential amount of data. This valuable information, including underrepresented cases like AI in medical settings, can fuel new deep-learning tools. However, data…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Zikui Cai , Zhongpai Gao , Benjamin Planche , Meng Zheng , Terrence Chen , M. Salman Asif , Ziyan Wu

Differential privacy (DP) is a formal privacy framework that enables training machine learning (ML) models while protecting individuals' data. As pointed out by prior work, ML models are part of larger systems, which can lead to so-called…

Machine Learning · Computer Science 2026-04-27 Marlon Tobaben , Talal Alrawajfeh , Marcus Klasson , Mikko Heikkilä , Arno Solin , Antti Honkela

Online video streaming has evolved into an integral component of the contemporary Internet landscape. Yet, the disclosure of user requests presents formidable privacy challenges. As users stream their preferred online videos, their requests…

Multimedia · Computer Science 2026-02-02 Xianzhi Zhang , Yipeng Zhou , Di Wu , Quan Z. Sheng , Miao Hu , Linchang Xiao

Differential privacy (DP) defines privacy protection by promising quantified indistinguishability between individuals that consent to share their privacy-sensitive information and the ones that do not. DP aims to deliver this promise by…

Cryptography and Security · Computer Science 2022-05-25 Shiliang Zhang , Anton Hagermalm , Sanjin Slavnic , Elad Michael Schiller , Magnus Almgren

Differential privacy (DP) and local differential privacy (LPD) are frameworks to protect sensitive information in data collections. They are both based on obfuscation. In DP the noise is added to the result of queries on the dataset,…

Cryptography and Security · Computer Science 2019-07-01 Natasha Fernandes , Kacem Lefki , Catuscia Palamidessi
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