Besides smartphone, smart TV is also a hot trend today and in the near future. User can play game, listen to music, surf the internet, comment on their facebook and, also watch film or video.
Film service for TV is novel domain which has just started for 5 years. For any film provider, the number of film retention is target. Film recommendation is the way to improve this number. It is mentioned that Netflix and Hulu after are two honest film providers that published recommendation research for film. All of them use metadata as primary attributes to decide what film for recommending.
For evaluating a recommendation system, this post may useful.
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