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- Title
Receiver-side semantic reasoning for digital TV personalization in the absence of return channels.
- Authors
Martín López-Nores; Yolanda Blanco-Fernández; José Pazos-Arias; Jorge García-Duque; Manuel Ramos-Cabrer; Alberto Gil-Solla; Rebeca Díaz-Redondo; Ana Fernández-Vilas
- Abstract
Abstract Experience has proved that interactive applications delivered through Digital TV must provide personalized information to the viewers in order to be perceived as a valuable service. Due to the limited computational power of DTV receivers (either domestic set-top boxes or mobile devices), most of the existing systems have opted to place the personalization engines in dedicated servers, assuming that a return channel is always available for bidirectional communication. However, in a domain where most of the information is transmitted through broadcast, there are still many cases of intermittent, sporadic or null access to a return channel. In such situations, it is impossible for the servers to learn who is watching TV at the moment, and so the personalization features become unavailable. To solve this problem without sacrificing much personalization quality, this paper introduces solutions to run a downsized semantic reasoning process in the DTV receivers, supported by a pre-selection of material driven by audience stereotypes in the head-end. Evaluation results are presented to prove the feasibility of this approach, and also to assess the quality it achieves in comparison with previous ones.
- Subjects
DIGITAL television; APPLE TV (Digital media receiver); COMMUNICATION; ENGINES
- Publication
Multimedia Tools & Applications, 2009, Vol 41, Issue 3, p407
- ISSN
1380-7501
- Publication type
Article
- DOI
10.1007/s11042-008-0239-7