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Information network analysis has drawn a lot attention in recent years. Among all the aspects of network analysis, similarity measure of nodes has been shown useful in many applications, such as clustering, link prediction and community…

Cryptography and Security · Computer Science 2012-10-02 Yu-Wei Chu , Chih-Hua Tai , Ming-Syan Chen , Philip S. Yu

Recently, Lu et al. have proposed two image search schemes based on additive homomorphic encryption [IEEE Access, 2 (2014), 125-141]. We remark that both two schemes are flawed because: (1) the first scheme does not make use of the additive…

Cryptography and Security · Computer Science 2016-01-07 Zhengjun Cao , Lihua Liu

Advances in deep neural networks (DNN) and computer vision (CV) algorithms have made it feasible to extract meaningful insights from large-scale deployments of urban cameras. Tracking an object of interest across the camera network in near…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-03-17 Aakash Khochare , Aravindhan K , Yogesh Simmhan

As network data has become increasingly prevalent, a substantial amount of attention has been paid to the privacy issue in publishing network data. One of the critical challenges for data publishers is to preserve the topological structures…

Methodology · Statistics 2024-06-24 Yaoming Zhen , Shirong Xu , Junhui Wang

A highly secure, foolproof, user authentication system is still a primary focus of research in the field of User Privacy and Security. Shoulder-surfing is an act of spying when an authorized user is logging into a system, and is promoted by…

Human-Computer Interaction · Computer Science 2018-03-22 Vijay Rajanna , Tracy Hammond

Differential privacy mechanisms such as the Gaussian or Laplace mechanism have been widely used in data analytics for preserving individual privacy. However, they are mostly designed for continuous outputs and are unsuitable for scenarios…

Cryptography and Security · Computer Science 2024-06-06 Zhongteng Cai , Xueru Zhang , Mohammad Mahdi Khalili

Networked systems are increasingly the target of cyberattacks that exploit vulnerabilities within digital communications, embedded hardware, and software. Arguably, the simplest class of attacks -- and often the first type before launching…

Cryptography and Security · Computer Science 2024-02-27 Xinhao Yan , Guanzhong Zhou , Daniel E. Quevedo , Carlos Murguia , Bo Chen , Hailong Huang

With the growing adoption of privacy-preserving machine learning algorithms, such as Differentially Private Stochastic Gradient Descent (DP-SGD), training or fine-tuning models on private datasets has become increasingly prevalent. This…

Cryptography and Security · Computer Science 2025-03-05 Hong Guan , Lei Yu , Lixi Zhou , Li Xiong , Kanchan Chowdhury , Lulu Xie , Xusheng Xiao , Jia Zou

Sensors embedded in mobile smart devices can monitor users' activity with high accuracy to provide a variety of services to end-users ranging from precise geolocation, health monitoring, and handwritten word recognition. However, this…

Cryptography and Security · Computer Science 2022-05-16 Rahat Masood , Wing Yan Cheng , Dinusha Vatsalan , Deepak Mishra , Hassan Jameel Asghar , Mohamed Ali Kaafar

Record linkage has been extensively used in various data mining applications involving sharing data. While the amount of available data is growing, the concern of disclosing sensitive information poses the problem of utility vs privacy. In…

Databases · Computer Science 2012-08-15 Luca Bonomi , Li Xiong , Rui Chen , Benjamin C. M. Fung

Mobile network operators can track subscribers via passive or active monitoring of device locations. The recorded trajectories offer an unprecedented outlook on the activities of large user populations, which enables developing new…

Computers and Society · Computer Science 2017-01-10 Marco Gramaglia , Marco Fiore , Alberto Tarable , Albert Banchs

Several contact tracing solutions have been proposed and implemented all around the globe to combat the spread of COVID-19 pandemic. But, most of these solutions endanger the privacy rights of the individuals and hinder their widespread…

Cryptography and Security · Computer Science 2020-08-18 Priyanka Singh , Abhishek Singh , Gabriel Cojocaru , Praneeth Vepakomma , Ramesh Raskar

This paper describes privacy-preserving approaches for the statistical analysis. It describes motivations for privacy-preserving approaches for the statistical analysis of sensitive data, presents examples of use cases where such methods…

We present a new concern when collecting data from individuals that arises from the attempt to mitigate privacy leakage in multiple reporting: tracking of users participating in the data collection via the mechanisms added to provide…

Cryptography and Security · Computer Science 2020-04-08 Moni Naor , Neil Vexler

Advanced facial recognition technologies and recommender systems with inadequate privacy technologies and policies for facial interactions increase concerns about bioprivacy violations. With the proliferation of video and live-streaming…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Yubo Huang , Wenhao Feng , Xin Lai , Zixi Wang , Jingzehua Xu , Shuai Zhang , Hongjie He , Fan Chen

Similarity search is essential to many important applications and often involves searching at scale on high-dimensional data based on their similarity to a query. In biometric applications, recent vulnerability studies have shown that…

Cryptography and Security · Computer Science 2017-11-07 Yi Wang , Jianwu Wan , Jun Guo , Yiu-Ming Cheung , Pong C Yuen

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

Directly releasing those data raises privacy and liability (e.g., due to unauthorized distribution of such datasets) concerns since location data contain users' sensitive information, e.g., regular moving patterns and favorite spots. To…

Cryptography and Security · Computer Science 2023-04-25 Yuzhou Jiang , Emre Yilmaz , Erman Ayday

Today, tracking and controlling the spread of a virus is a crucial need for almost all countries. Doing this early would save millions of lives and help countries keep a stable economy. The easiest way to control the spread of a virus is to…

Cryptography and Security · Computer Science 2020-10-26 Didem Demirag , Erman Ayday

Preserving privacy of continuous and/or high-dimensional data such as images, videos and audios, can be challenging with syntactic anonymization methods which are designed for discrete attributes. Differential privacy, which provides a more…

Machine Learning · Computer Science 2017-12-04 Jihun Hamm
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