ON “ ADVANCES IN MULTIMEDIA SOCIAL NETWORKS ” . . 2 Advance in Multimedia Social Networks

With the growth of multimedia applications and reshaping of high-speed internet, large size multimedia content can be delivered smoothly to end users for their entertainment. These end users not only consume multimedia content such as online TV program, and but also produce the multimedia content such as photos and video clips to the internet servers. The social relationships among end users significantly impact the multimedia content distribution and usage. On the other hand, multimedia cloud computing and services grow fast and are providing powerful software and service platforms for many online social network applications. However, there are still significant research challenges remained for multimedia social networks. For example, (1) network bandwidth dynamics due to heterogeneous networks make it difficult to guarantee QoS for social network applications. (2) The computational intensive media processing on lightweight mobile social clients is time and energy consuming. (3) the complex relationship between social structure and patterns of multimedia content distribution demands further investigations. Therefore, significant research efforts are expected in the area of media processing, social networks and communications to push forward this key multimedia social network technology. In the first paper titled as " Content Delivery as a Service for Cloud-Centric Multimedia Social Networks, " a novel cloud based content delivery solution is provided to address the problem on the efficient distribution of user generated content in multimedia social networks. In particular, the authors aim to realize content delivery as a service by leveraging the cloud computing technology. The schematic framework along with the design on media cloud, cloud-centric media platform and an application example, social media are presented. An increasing amount of requests of the video sites are from online social networks (OSNs) nowadays. Their word-of-mouth based information spreading mechanisms have substantially reshaped the workload of online video services. In the second paper titled " Video Sharing Reshaped: An Initial Investigation on the Impact of Online Social Networks " the authors observes the growth, and describes the technology. Particularly, they pointed out that the skewness of video popularity distribution are extremely amplified, and many attractive videos have only received limited requests in OSNs with existing imperfect video spreading mechanisms. The third paper titled as " Game-theoretical Approaches in Wireless Multimedia Social Networks " , which firstly provides a general introduction of the developing wireless multimedia social networks (WMSN). Then, the authors give a survey of game theoretical approaches in WMSNs with respect to …