A system and method for making program recommendations to users of a network-based video recording system utilizes expressed preferences as inputs to collaborative filtering and Bayesian predictive algorithms to rate television programs using a graphical rating system. The predictive algorithms are adaptive,...http://www.google.com.hk/patents/US7840986?utm_source=gb-gplus-share專利 US7840986 - Intelligent system and methods of recommending media content items based on user preferences