IndexTV: a MPEG-7 based personalized recommendation system for digital TV

Digital television is a reality, providing new facilities for multimedia content delivery. Due to the large amount of available content from multiple broadcasters, the use of personalized recommendation techniques can help the user in the process of consuming A/V content. The viewer, who is actually a passive subject, is changed into an active one, who can organize the TV program guide of interest whenever and however he wants, achieving a real "agrave la carte TV". We present an end-to-end system able to offer A/V contents according to the TV viewer\´s preferences. The system adapts its suggestions to the changes in viewer\´s behaviour across time