Mobile Intelligence

21.3 SYSTEM ARCHITECTURE

In this proposed research, the traditional client–server system architecture is adopted but enhanced to accommodate the requirements for the mobile-based multimedia services. In order to provide the maximum support and optimized solution, the following criteria are strictly followed in the system design. First, storage consumption information and computationally intensive operations are handled in the server side. Second, mobile clients are solely required to maintain the minimized data to enable the retrieval process. Third, the system should reduce the load for the wireless network, and at the same time increase the data transfer speed for the multimedia data.

In the server-side database, the huge amount of multimedia data are stored and managed by employing the HMMM mechanism. The video database contains not only the archived videos, video shots, and clusters, but also the numerical values that represent their affinity relationships, features, and access histories, and so on. As shown in Figure 21.1, the database for general user feedbacks is developed, which consists of the positive access events or patterns from the whole group of different users. The individual user feedbacks can also be extracted from this database to architect the HMMM-based individual user profiles, which will be explained in the later sections. These access histories are utilized by the system to learn both the general user perceptions and individual user interests. Based on the ...