Semantic network based integrated multi-level search system for smart TV

As the Internet technology has been growing up fast; Internet has been used as a common infrastructure widespread. The broadcast environment has been also changed with transmission network expanded to Internet. TV is no longer than a passive device to receive a signal of terrestrial television broadcasting and it is evolving into a smart device providing Internet-based services. The evolution made Smart TV users get plenty of multimedia contents from broadcasting stations or content providers on Internet. However, it is quite difficult to find multimedia contents using ambiguous user search keywords. In this paper, we have designed the semantic network based integrated multi-level search system to improve search accuracy and expand search coverage. The proposed system can retrieve a target multimedia content what a user exactly wants from various sources using user keywords interpreted by semantic network.