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Differential privacy (DP) has arisen as the state-of-the-art metric for quantifying individual privacy when sensitive data are analyzed, and it is starting to see practical deployment in organizations such as the US Census Bureau, Apple,…

Cryptography and Security · Computer Science 2020-04-21 Sameer Wagh , Xi He , Ashwin Machanavajjhala , Prateek Mittal

In recent years, the financial sector has faced growing pressure to adopt advanced machine learning models to derive valuable insights while preserving data privacy. However, the highly sensitive nature of financial data presents…

Computational Engineering, Finance, and Science · Computer Science 2024-10-18 Peilin He , Chenkai Lin , Isabella Montoya

Differential privacy provides a formal approach to privacy of individuals. Applications of differential privacy in various scenarios, such as protecting users' original utterances, must satisfy certain mathematical properties. Our…

Computation and Language · Computer Science 2022-03-07 Ivan Habernal

Content based data classification is an open challenge. Traditional Data Loss Prevention (DLP)-like systems solve this problem by fingerprinting the data in question and monitoring endpoints for the fingerprinted data. With a large number…

Cryptography and Security · Computer Science 2020-07-08 Paulo Tanaka , Sameet Sapra , Nikolay Laptev

Deep Neural Network (DNN) has been showing great potential in kinds of real-world applications such as fraud detection and distress prediction. Meanwhile, data isolation has become a serious problem currently, i.e., different parties cannot…

Machine Learning · Computer Science 2020-03-13 Longfei Zheng , Chaochao Chen , Yingting Liu , Bingzhe Wu , Xibin Wu , Li Wang , Lei Wang , Jun Zhou , Shuang Yang

Large language models have repeatedly shown outstanding performance across diverse applications. However, deploying these models can inadvertently risk user privacy. The significant memory demands during training pose a major challenge in…

Cryptography and Security · Computer Science 2025-02-21 Yanming Liu , Xinyue Peng , Yuwei Zhang , Xiaolan Ke , Songhang Deng , Jiannan Cao , Chen Ma , Mengchen Fu , Tianyu Du , Sheng Cheng , Xun Wang , Jianwei Yin , Xuhong Zhang

In this paper, we design Top-DP, a novel solution to optimize the differential privacy protection of decentralized image classification systems. The key insight of our solution is to leverage the unique features of decentralized…

Cryptography and Security · Computer Science 2021-09-03 Shangwei Guo , Tianwei Zhang , Guowen Xu , Han Yu , Tao Xiang , Yang Liu

Differential privacy (DP) provides a formal privacy guarantee that prevents adversaries with access to machine learning models from extracting information about individual training points. Differentially private stochastic gradient descent…

Cryptography and Security · Computer Science 2022-12-15 Jie Fu , Zhili Chen , XinPeng Ling

Large volumes of medical data remain underutilized because centralizing distributed data is often infeasible due to strict privacy regulations and institutional constraints. In addition, models trained in centralized settings frequently…

Image and Video Processing · Electrical Eng. & Systems 2026-05-12 Puja Saha , Eranga Ukwatta

We introduce the novel problem of benchmarking fraud detectors on private graph-structured data. Currently, many types of fraud are managed in part by automated detection algorithms that operate over graphs. We consider the scenario where a…

Cryptography and Security · Computer Science 2025-07-31 Alexander Goldberg , Giulia Fanti , Nihar Shah , Zhiwei Steven Wu

It has been demonstrated that hidden representation learned by a deep model can encode private information of the input, hence can be exploited to recover such information with reasonable accuracy. To address this issue, we propose a novel…

Machine Learning · Computer Science 2020-10-06 Lingjuan Lyu , Xuanli He , Yitong Li

The concept of differential privacy (DP) has gained substantial attention in recent years, most notably since the U.S. Census Bureau announced the adoption of the concept for its 2020 Decennial Census. However, despite its attractive…

Methodology · Statistics 2024-08-14 Jörg Drechsler , James Bailie

The need for a privacy management layer in today's systems started to manifest with the emergence of new systems for privacy-preserving analytics and privacy compliance. As a result, many independent efforts have emerged that try to provide…

Cryptography and Security · Computer Science 2023-12-13 Nicolas Küchler , Emanuel Opel , Hidde Lycklama , Alexander Viand , Anwar Hithnawi

Private and public organizations regularly collect and analyze digitalized data about their associates, volunteers, clients, etc. However, because most personal data are sensitive, there is a key challenge in designing privacy-preserving…

Cryptography and Security · Computer Science 2022-04-05 Héber H. Arcolezi

Local differential privacy (LDP) is a strong notion of privacy for individual users that often comes at the expense of a significant drop in utility. The classical definition of LDP assumes that all elements in the data domain are equally…

Machine Learning · Computer Science 2020-07-29 Jayadev Acharya , Keith Bonawitz , Peter Kairouz , Daniel Ramage , Ziteng Sun

Privacy protection is an important research area, which is especially critical in this big data era. To a large extent, the privacy of visual classification data is mainly in the mapping between the image and its corresponding label, since…

Cryptography and Security · Computer Science 2021-02-04 Yiming Li , Peidong Liu , Yong Jiang , Shu-Tao Xia

Generating tabular data under differential privacy (DP) protection ensures theoretical privacy guarantees but poses challenges for training machine learning models, primarily due to the need to capture complex structures under noisy…

Machine Learning · Computer Science 2025-04-30 Tejumade Afonja , Hui-Po Wang , Raouf Kerkouche , Mario Fritz

Generally, privacy-enhancing face recognition systems are designed to offer permanent protection of face embeddings. Recently, so-called soft-biometric privacy-enhancement approaches have been introduced with the aim of canceling…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Daile Osorio-Roig , Paul A. Gerlitz , Christian Rathgeb , Christoph Busch

As multi-agent systems become more numerous and more data-driven, novel forms of privacy are needed in order to protect data types that are not accounted for by existing privacy frameworks. In this paper, we present a new form of privacy…

Optimization and Control · Mathematics 2017-10-04 Matthew T. Hale

We propose a novel architecture which is able to automatically anonymize faces in images while retaining the original data distribution. We ensure total anonymization of all faces in an image by generating images exclusively on privacy-safe…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Håkon Hukkelås , Rudolf Mester , Frank Lindseth