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We show how group discounts can be offered without forcing buyers to surrender their anonymity, as long as buyers can use their own computing devices (e.g. smartphone, tablet or computer) to perform a purchase. Specifically, we present a…

Cryptography and Security · Computer Science 2014-12-02 Josep Domingo-Ferrer , Alberto Blanco-Justicia

Data sharing between different organizations is an essential process in today's connected world. However, recently there were many concerns about data sharing as sharing sensitive information can jeopardize users' privacy. To preserve the…

Computer Science and Game Theory · Computer Science 2021-02-01 Abdelrahman Eldosouky , Tapadhir Das , Anuraag Kotra , Shamik Sengupta

Secure communication is one of the key applications of quantum networks. In recent years, following the demands for identity protection in classical communication protocols, the need for anonymity has also emerged for quantum networks.…

Quantum Physics · Physics 2021-08-27 Christopher Thalacker , Frederik Hahn , Jarn de Jong , Anna Pappa , Stefanie Barz

Privacy is a well-understood concept in the physical world, with us all desiring some escape from the public gaze. However, while individuals might recognise locking doors as protecting privacy, they have difficulty practising equivalent…

Computers and Society · Computer Science 2018-07-17 Meredydd Williams , Jason R. C. Nurse , Sadie Creese

Companies are looking to data anonymization research $\unicode{x2013}$ including differential private and synthetic data methods $\unicode{x2013}$ for simple and straightforward compliance solutions. But data anonymization has not taken off…

Cryptography and Security · Computer Science 2025-10-21 Matthew J. Schneider , James Bailie , Dawn Iacobucci

In medical organizations large amount of personal data are collected and analyzed by the data miner or researcher, for further perusal. However, the data collected may contain sensitive information such as specific disease of a patient and…

Cryptography and Security · Computer Science 2012-03-19 Pawan R Bhaladhare , Devesh Jinwala

In this work, we focus on protection against identity disclosure in the publication of sparse multidimensional data. Existing multidimensional anonymization techniquesa) protect the privacy of users either by altering the set of…

Databases · Computer Science 2012-07-03 Manolis Terrovitis , John Liagouris , Nikos Mamoulis , Spiros Skiadopoulos

Human mobility data is a crucial resource for urban mobility management, but it does not come without personal reference. The implementation of security measures such as anonymization is thus needed to protect individuals' privacy. Often, a…

Cryptography and Security · Computer Science 2024-07-08 Alexandra Kapp

Data anonymization is an approach to privacy-preserving data release aimed at preventing participants reidentification, and it is an important alternative to differential privacy in applications that cannot tolerate noisy data. Existing…

Data Structures and Algorithms · Computer Science 2022-01-31 Gecia Bravo-Hermsdorff , Robert Busa-Fekete , Lee M. Gunderson , Andrés Munõz Medina , Umar Syed

User-driven privacy allows individuals to control whether and at what granularity their data is shared, leading to datasets that mix original, generalized, and missing values within the same records and attributes. While such…

Machine Learning · Computer Science 2026-02-03 Lucas Lange , Adrian Böttinger , Victor Christen , Anushka Vidanage , Peter Christen , Erhard Rahm

Since the beginning of the digital area, privacy and anonymity have been impacted drastically (both, positively and negatively), by the different technologies developed for communications purposes. The broad possibilities that the Internet…

Computers and Society · Computer Science 2014-07-03 Adrian Yanes

We provide a framework for reasoning about information-hiding requirements in multiagent systems and for reasoning about anonymity in particular. Our framework employs the modal logic of knowledge within the context of the runs and systems…

Cryptography and Security · Computer Science 2007-05-23 Joseph Y. Halpern , Kevin R. O'Neill

For privacy concerns to be addressed adequately in current machine learning systems, the knowledge gap between the machine learning and privacy communities must be bridged. This article aims to provide an introduction to the intersection of…

Cryptography and Security · Computer Science 2018-05-01 Mohammad Al-Rubaie , J. Morris Chang

This paper focuses the attention on privacy-preserving identity and access management in multiple Cloud environments, which is an annoying problem in the modern big data era. Within this conceptual context, the paper describes…

Cryptography and Security · Computer Science 2024-12-31 Alfredo Cuzzocrea , Islam Belmerabet

Powerful recognition algorithms are widely used in the Internet or important medical systems, which poses a serious threat to personal privacy. Although the law provides for diversity protection, e.g. The General Data Protection Regulation…

Cryptography and Security · Computer Science 2022-02-15 Hao Wang , Yu Bai , Guangmin Sun , Jie Liu

Microaggregation is a technique for disclosure limitation aimed at protecting the privacy of data subjects in microdata releases. It has been used as an alternative to generalization and suppression to generate $k$-anonymous data sets,…

Cryptography and Security · Computer Science 2016-08-06 Jordi Soria-Comas , Josep Domingo-Ferrer , David Sánchez , Sergio Martínez

Numerous generalization techniques have been proposed for privacy preserving data publishing. Most existing techniques, however, implicitly assume that the adversary knows little about the anonymization algorithm adopted by the data…

Databases · Computer Science 2010-03-29 Xiaokui Xiao , Yufei Tao , Nick Koudas

Process mining techniques help to improve processes using event data. Such data are widely available in information systems. However, they often contain highly sensitive information. For example, healthcare information systems record event…

Databases · Computer Science 2021-05-26 Majid Rafiei , Wil M. P. van der Aalst

Knowledge Graph (KG) has attracted more and more companies' attention for its ability to connect different types of data in meaningful ways and support rich data services. However, the data isolation problem limits the performance of KG and…

Databases · Computer Science 2020-11-23 Chaochao Chen , Jamie Cui , Guanfeng Liu , Jia Wu , Li Wang

While the introduction of differential privacy has been a major breakthrough in the study of privacy preserving data publication, some recent work has pointed out a number of cases where it is not possible to limit inference about…

Databases · Computer Science 2012-02-16 Ada Wai-Chee Fu , Jia Wang , Ke Wang , Raymond Chi-Wing Wong