A method and apparatus for protecting user privacy in a recommender system are described
including determining what information to release to a user for a movie, transmitting the
information to the user, accepting obfuscated input from the user and estimating the user's
non-private feature vector. Also described are a method and apparatus for protecting user
privacy in a recommender system including receiving movie information, accepting a user's
movie feedback, accepting user's private information, calculating an obfuscation value and …