Survey of Privacy-Preserving Collaborative Filtering
It provides a comprehensive overview for researchers and practitioners in recommendation systems, but is incremental as it synthesizes existing work without new methods or results.
This survey examines privacy-preserving collaborative filtering, addressing the problem of user privacy concerns in recommendation systems by reviewing and classifying recent literature based on vulnerabilities and approaches.
Collaborative filtering recommendation systems provide recommendations to users based on their own past preferences, as well as those of other users who share similar interests. The use of recommendation systems has grown widely in recent years, helping people choose which movies to watch, books to read, and items to buy. However, users are often concerned about their privacy when using such systems, and many users are reluctant to provide accurate information to most online services. Privacy-preserving collaborative filtering recommendation systems aim to provide users with accurate recommendations while maintaining certain guarantees about the privacy of their data. This survey examines the recent literature in privacy-preserving collaborative filtering, providing a broad perspective of the field and classifying the key contributions in the literature using two different criteria: the type of vulnerability they address and the type of approach they use to solve it.