Measuring the privacy of user profiles in personalized information systems

J Parra-Arnau, D Rebollo-Monedero, J Forné - Future Generation …, 2014‏ - Elsevier
Personalized information systems are information-filtering systems that endeavor to tailor
information-exchange functionality to the specific interests of their users. The ability of these …

Comparing recommender systems using synthetic data

M Slokom - Proceedings of the 12th ACM Conference on …, 2018‏ - dl.acm.org
In this work, we propose SynRec, a data protection framework that uses data synthesis. The
goal is to protect sensitive information in the user-item matrix by replacing the original values …

A survey of privacy-preserving collaborative filtering schemes

A Bilge, C Kaleli, I Yakut, I Gunes… - International Journal of …, 2013‏ - World Scientific
With increasing need for preserving confidential data while providing recommendations,
privacy-preserving collaborative filtering has been receiving increasing attention. To make …

Privacy-preserving enhanced collaborative tagging

J Parra-Arnau, A Perego, E Ferrari… - … on Knowledge and …, 2012‏ - ieeexplore.ieee.org
Collaborative tagging is one of the most popular services available online, and it allows end
user to loosely classify either online or offline resources based on their feedback, expressed …

[HTML][HTML] Privacy protection against user profiling through optimal data generalization

C Gil, J Parra-Arnau, J Forné - Computers & Security, 2025‏ - Elsevier
Personalized information systems are information-filtering systems that endeavor to tailor
information-exchange functionality to the specific interests of their users. The ability of these …

[HTML][HTML] Optimal forgery and suppression of ratings for privacy enhancement in recommendation systems

J Parra-Arnau, D Rebollo-Monedero, J Forné - Entropy, 2014‏ - mdpi.com
Recommendation systems are information-filtering systems that tailor information to users on
the basis of knowledge about their preferences. The ability of these systems to profile users …

A practical system for privacy-preserving collaborative filtering

R Chow, MA Pathak, C Wang - 2012 IEEE 12th International …, 2012‏ - ieeexplore.ieee.org
Collaborative filtering is a widely-used technique in online services to enhance the accuracy
of a recommender system. This technique, however, comes at the cost of users having to …

Protecting private attributes in app based mobile user profiling

I Ullah, R Boreli, SS Kanhere, S Chawla… - IEEE …, 2020‏ - ieeexplore.ieee.org
The Analytics companies enable successful targeted advertising via user profiles, derived
from the mobile apps installed by specific users, and hence have become an integral part of …

Differential data analysis for recommender systems

R Chow, H **, B Knijnenburg, G Saldamli - Proceedings of the 7th ACM …, 2013‏ - dl.acm.org
We present techniques to characterize which data contributes most to the accuracy of a
recommendation algorithm. Our main technique is called differential data analysis. The …

Privacy preserving collaborative filtering from asymmetric randomized encoding

Y Zhao, SSM Chow - … Conference on Financial Cryptography and Data …, 2015‏ - Springer
Collaborative filtering is a famous technique in recommendation systems. Yet, it requires the
users to reveal their preferences, which has undesirable privacy implications. Over the …