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Internet data has surfaced as a primary source for investigation of different aspects of human behavior. A crucial step in such studies is finding a suitable cohort (i.e., a set of users) that shares a common trait of interest to…

Information Retrieval · Computer Science 2018-05-16 Luca Soldaini , Elad Yom-Tov

Researchers often face the problem of needing to protect the privacy of subjects while also needing to integrate data that contains personal information from diverse data sources in order to conduct their research. The advent of…

Computers and Society · Computer Science 2011-12-06 Jason J. Jones , Robert M. Bond , Christopher J. Fariss , Jaime E. Settle , Adam Kramer , Cameron Marlow , James H. Fowler

Biometric data contains distinctive human traits such as facial features or gait patterns. The use of biometric data permits an individuation so exact that the data is utilized effectively in identification and authentication systems. But…

Cryptography and Security · Computer Science 2024-07-10 Simon Hanisch , Julian Todt , Jose Patino , Nicholas Evans , Thorsten Strufe

In this paper we propose use of a k-anonymity-like approach for evaluating the privacy of redacted text. Given a piece of redacted text we use a state of the art transformer-based deep learning network to reconstruct the original text. This…

Machine Learning · Computer Science 2024-10-11 Vaibhav Gusain , Douglas Leith

Anonymous database search protocols allow users to query a database anonymously. This can be achieved by letting the users form a peer-to-peer community and post queries on behalf of each other. In this article we discuss an application of…

Cryptography and Security · Computer Science 2012-12-10 Klara Stokes , Oriol Farràs

Anonymizing text that contains sensitive information is crucial for a wide range of applications. Existing techniques face the emerging challenges of the re-identification ability of large language models (LLMs), which have shown advanced…

Computation and Language · Computer Science 2025-06-19 Tianyu Yang , Xiaodan Zhu , Iryna Gurevych

As the issues of privacy and trust are receiving increasing attention within the research community, various attempts have been made to anonymize textual data. A significant subset of these approaches incorporate differentially private…

Cryptography and Security · Computer Science 2022-05-05 Justus Mattern , Benjamin Weggenmann , Florian Kerschbaum

Personalized recommendations form an important part of today's internet ecosystem, helping artists and creators to reach interested users, and helping users to discover new and engaging content. However, many users today are skeptical of…

Cryptography and Security · Computer Science 2024-01-09 Allegra Laro , Yanqing Chen , Hao He , Babak Aghazadeh

Re-identification algorithms are used in data privacy to measure disclosure risk. They model the situation in which an adversary attacks a published database by means of linking the information of this adversary with the database. In this…

Cryptography and Security · Computer Science 2013-01-23 Vicenç Torra , Klara Stokes

Creation of a synthetic dataset that faithfully represents the data distribution and simultaneously preserves privacy is a major research challenge. Many space partitioning based approaches have emerged in recent years for answering…

Cryptography and Security · Computer Science 2023-06-26 Eleonora Kreačić , Navid Nouri , Vamsi K. Potluru , Tucker Balch , Manuela Veloso

In this paper, we study the privacy of online health data. We present a novel online health data De-Anonymization (DA) framework, named De-Health. De-Health consists of two phases: Top-K DA, which identifies a candidate set for each…

Cryptography and Security · Computer Science 2019-06-04 Shouling Ji , Qinchen Gu , Haiqin Weng , Qianjun Liu , Qinming He , Raheem Beyah , Ting Wang

Advances in imaging technologies, combined with inexpensive storage, have led to an explosion in the volume of publicly available neuroimaging datasets. Effective analyses of these images hold the potential for uncovering mechanisms that…

Cryptography and Security · Computer Science 2019-08-12 Vikram Ravindra , Ananth Grama

Motivated by a strongly growing interest in anonymizing social network data, we investigate the NP-hard Degree Anonymization problem: given an undirected graph, the task is to add a minimum number of edges such that the graph becomes…

Social and Information Networks · Computer Science 2014-02-26 Sepp Hartung , Clemens Hoffmann , André Nichterlein

For scalable machine learning on large data sets, subsampling a representative subset is a common approach for efficient model training. This is often achieved through importance sampling, whereby informative data points are sampled more…

Cryptography and Security · Computer Science 2025-03-31 Dominik Fay , Sebastian Mair , Jens Sjölund

To enable process analysis based on an event log without compromising the privacy of individuals involved in process execution, a log may be anonymized. Such anonymization strives to transform a log so that it satisfies provable privacy…

Cryptography and Security · Computer Science 2021-08-11 Fabian Rösel , Stephan A. Fahrenkrog-Petersen , Han van der Aa , Matthias Weidlich

OpenData movement around the globe is demanding more access to information which lies locked in public or private servers. As recently reported by a McKinsey publication, this data has significant economic value, yet its release has…

Databases · Computer Science 2012-05-15 David Leoni

Privacy is of the utmost concern when it comes to releasing data to third parties. Data owners rely on anonymization approaches to safeguard the released datasets against re-identification attacks. However, even with strict anonymization in…

Cryptography and Security · Computer Science 2021-08-18 Spiros Antonatos , Stefano Braghin , Naoise Holohan , Pol MacAonghusa

In real-world, our DNA is unique but many people share names. This phenomenon often causes erroneous aggregation of documents of multiple persons who are namesake of one another. Such mistakes deteriorate the performance of document…

Social and Information Networks · Computer Science 2017-09-12 Baichuan Zhang , Mohammad Al Hasan

Origin-Destination (OD) matrices are a core component of research on users' mobility and summarize how individuals move between geographical regions. These regions should be small enough to be representative of user mobility, without…

Information Retrieval · Computer Science 2025-09-17 Pietro Armenante , Kai Huang , Nikhil Jha , Luca Vassio

In an age of voice-enabled technology, voice anonymization offers a solution to protect people's privacy, provided these systems work equally well across subgroups. This study investigates bias in voice anonymization systems within the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-28 Anna Leschanowsky , Ünal Ege Gaznepoglu , Nils Peters