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Data centers always face challenges of peak and fluctuating resource demand from time to time. Building a data center that is large enough to meet a peak demand is not cost effective. The emerging of Cloud computing model allows the data center to dynamically acquire additional resources on demand and pay only for what resources having been used. So, the(More)
The Internet has formed the largest computing resource and data repository on this planet. The advent of it greatly benefited us in creating an important building block of the collaborative environment. There are some problems which impedes the success of creating it effectively. From the computing resources view, it is very difficult to permit users to(More)
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