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To defend the inference attacks and mitigate the sensitive information leakages in Federated Learning (FL), client-level Differentially Private FL (DPFL) is the de-facto standard for privacy protection by clipping local updates and adding…

Machine Learning · Computer Science 2023-05-03 Yifan Shi , Kang Wei , Li Shen , Yingqi Liu , Xueqian Wang , Bo Yuan , Dacheng Tao

While storing documents on the cloud can be attractive, the question remains whether cloud providers can be trusted with storing private documents. Even if trusted, data breaches are ubiquitous. To prevent information leakage one can store…

Cryptography and Security · Computer Science 2023-07-04 Marco Dijkslag , Marc Damie , Florian Hahn , Andreas Peter

Encrypted deduplication combines encryption and deduplication to simultaneously achieve both data security and storage efficiency. State-of-the-art encrypted deduplication systems mainly build on deterministic encryption to preserve…

Cryptography and Security · Computer Science 2019-10-10 Jingwei Li , Patrick P. C. Lee , Chufeng Tan , Chuan Qin , Xiaosong Zhang

Diffusion models (DMs) have achieved significant progress in text-to-image generation. However, the inevitable inclusion of sensitive information during pre-training poses safety risks, such as unsafe content generation and copyright…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Hongguang Zhu , Yunchao Wei , Mengyu Wang , Siyu Jiao , Yan Fang , Jiannan Huang , Yao Zhao

Unstructured data is pervasive, but analytical queries demand structured representations, creating a significant extraction challenge. Existing methods like RAG lack schema awareness and struggle with cross-document alignment, leading to…

Databases · Computer Science 2025-11-05 Daren Chao , Kaiwen Chen , Naiqing Guan , Nick Koudas

Software vulnerabilities (SVs) have emerged as a prevalent and critical concern for safety-critical security systems. This has spurred significant advancements in utilizing AI-based methods, including machine learning and deep learning, for…

Software Engineering · Computer Science 2025-10-07 Van Nguyen , Surya Nepal , Tingmin Wu , Xingliang Yuan , Carsten Rudolph

We introduce a deep learning framework able to deal with strong privacy constraints. Based on collaborative learning, differential privacy and homomorphic encryption, the proposed approach advances state-of-the-art of private deep learning…

Cryptography and Security · Computer Science 2021-03-29 Arnaud Grivet Sébert , Rafael Pinot , Martin Zuber , Cédric Gouy-Pailler , Renaud Sirdey

We propose a method for the release of differentially private synthetic datasets. In many contexts, data contain sensitive values which cannot be released in their original form in order to protect individuals' privacy. Synthetic data is a…

Methodology · Statistics 2018-05-25 Joshua Snoke , Aleksandra Slavković

Diffusion-based purification (DBP) has become a cornerstone defense against adversarial examples (AEs), regarded as robust due to its use of diffusion models (DMs) that project AEs onto the natural data manifold. We refute this core claim,…

Cryptography and Security · Computer Science 2026-02-11 Andre Kassis , Urs Hengartner , Yaoliang Yu

While collaborative systems provide convenience to our lives, they also face many security threats. One of them is the Low-rate Distributed Denial-of-Service (LDDoS) attack, which is a worthy concern. Unlike volumetric DDoS attacks that…

Cryptography and Security · Computer Science 2023-06-28 Tianyang Cai , Yuqi Li , Tao Jia , Leo Yu Zhang , Zheng Yang

Diffusion Language Models (DLMs) have emerged as a compelling alternative to autoregressive approaches, enabling parallel text generation with competitive performance. Despite these advantages, there is a critical instability in DLMs: the…

Computation and Language · Computer Science 2026-02-24 Zihou Zhang , Zheyong Xie , Li Zhong , Haifeng Liu , Yao Hu , Shaosheng Cao

The growing deployment of deep learning models in real-world environments has intensified the need for efficient inference under strict latency and resource constraints. To meet these demands, dynamic deep learning systems (DDLSs) have…

Machine Learning · Computer Science 2025-06-24 Ravishka Rathnasuriya , Wei Yang

In this paper, we have introduced a new type of leakage associated with modern encrypted databases called update pattern leakage. We formalize the definition and security model of DP-Sync with DP update patterns. We also proposed the…

Cryptography and Security · Computer Science 2021-04-08 Chenghong Wang , Johes Bater , Kartik Nayak , Ashwin Machanavajjhala

Based on the use of different exponential bases to define class-dependent error bounds, a new and highly efficient asymmetric boosting scheme, coined as AdaBoostDB (Double-Base), is proposed. Supported by a fully theoretical derivation…

Computer Vision and Pattern Recognition · Computer Science 2015-07-09 Iago Landesa-Vázquez , José Luis Alba-Castro

A large and growing amount of speech content in real-life scenarios is being recorded on consumer-grade devices in uncontrolled environments, resulting in degraded speech quality. Transforming such low-quality device-degraded speech into…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-23 Haoyu Li , Junichi Yamagishi

Embeddings have become a cornerstone in the functionality of large language models (LLMs) due to their ability to transform text data into rich, dense numerical representations that capture semantic and syntactic properties. These embedding…

Cryptography and Security · Computer Science 2025-11-20 Tiantian Liu , Hongwei Yao , Feng Lin , Tong Wu , Zhan Qin , Kui Ren

Metric Differential Privacy (mDP) extends the concept of Differential Privacy (DP) to serve as a new paradigm of data perturbation. It is designed to protect secret data represented in general metric space, such as text data encoded as word…

Artificial Intelligence · Computer Science 2024-05-10 Chenxi Qiu

Certified safe control is a growing challenge in robotics, especially when performance and safety objectives must be concurrently achieved. In this work, we extend the barrier state (BaS) concept, recently proposed for safe stabilization of…

Robotics · Computer Science 2022-02-03 Hassan Almubarak , Kyle Stachowicz , Nader Sadegh , Evangelos A. Theodorou

Confidentiality of the data is being endangered as it has been categorized into false categories which might get leaked to an unauthorized party. For this reason, various organizations are mainly implementing data leakage prevention systems…

Cryptography and Security · Computer Science 2022-03-11 Ishu Gupta , Sloni Mittal , Ankit Tiwari , Priya Agarwal , Ashutosh Kumar Singh

Differentially private synthetic data generation (DP-SDG) algorithms are used to release datasets that are structurally and statistically similar to sensitive data while providing formal bounds on the information they leak. However, bugs in…

Cryptography and Security · Computer Science 2024-05-21 Meenatchi Sundaram Muthu Selva Annamalai , Georgi Ganev , Emiliano De Cristofaro