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Recently, Online social networks (OSNs) are growing at a phenomenal rate, and OSN service providers need to consider how to place users' data to multiple servers inside a data center. Key-value stores use consistent hashing to efficiently solve the problem of data placement, and turn into a defacto standard. However, random placement manner of hashing cannot preserve social locality, which leads to...
Distributed storage systems introduce redundancy to protect data from node failures. After a storage node fails, the lost data should be regenerated at a replacement storage node as soon as possible to maintain the same level of redundancy. Minimizing such a regeneration time is critical to the reliability of distributed storage systems. Existing work commits to reduce the regeneration time by either...
IPTV is an emerging Internet application, and is revolutionizing the entertainment and media industries. In this paper, we examine the current progress in research and development of IPTV systems. We provide an overview of two major IPTV system architectures, namely, the IP multicast architecture and the P2P architecture, and review various challenges, design issues, and interesting research problems...
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