AVATAR: Main Design Decisions(I) ● Motivation of Tv a The system must be updated when user preferences Recommender Systems ● Related Work lange e Main Design Decisions Goal: personalized and higher quality recommendations e The Architecture ● The Contributions of AVATAR ●TheL| KO language ● Conclusions ● Further Work● Motivation of TV Recommender Systems ● Related Work ● Main Design Decisions ● The Architecture ● The Contributions of AVATAR ● The LIKO language ● Conclusions ● Further Work Slide 5/14 AVATAR: Main Design Decisions (II) ■ The system must be updated when user preferences change. ◆ Goal: personalized and higher quality recommendations. ■ AVATAR must be flexible enough to favor updating process. ◆ MHP applications tuned in user’s receiver (Set-Top Box or STB). ■ MHP applications run in the context of a service or event. ◆ Problem: All user actions must be recorded all the time: local agent to watch the viewer behaviour. ◆ Local agent stores feedback information. ◆ Normalized access by TV-Anytime MHP API