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In order to achieve secure data aggregation without exposing the data privacy of data providers, a distributed Top-k aggregation query method is proposed in this paper based on the Privacy-preserving. The center node in this algorithm will firstly do privacy protection processing for data objects from the list provided by participants. Then, it will use secure multiparty computation operations to...
High quality images and their compression impose heavy computational burden on digital cinema production. While many optimizations have been proposed, they require additional hardware support and are far away from accomplishing real time or quasi real time digital cinema image compression. This paper proposed a cost-saving distributed image compression framework, which can be easily integrated with...
Recently, IPTV service has attracted significant attentions to both of the ISPs and normal users,and the quality of experience (QoE) from the users point of view is the most improtant evaluation for IPTV service provider. A reasonable peer selection mechanism of P2P based IPTV service can provide the end-users with a better QoE in a limited network resource environment. Therefore, the cross-layer...
Internet Protocol television (IPTV) is an increasingly hot technical topic both in the academic researching organizations and service providers which provides digital television services over Internet Protocol (IP) for residential and business users at a lower cost. At the meanwhile, the quality of experience (QoE) from the users point of view is the most important evaluation for IPTV service provider...
The amount of client a live streaming system can serve by unicast is limited by the bandwidth requirement. Theoretically, IP-multicast is an efficient solution for that situation, but it suffers from poor deployment. Therefore, another solution, called Application Layer Multicast (ALM), is being increasingly recognized as a available alternative. However, this solution also has certain shortcomings...
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