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Although cloud computing has emerged as a promising future computing model, security concerns due to malicious tenants have been deterring its fast adoption. In cloud computing, multiple tenants may share physical systems by using virtualization techniques. In such a virtualized system, a software hypervisor creates virtual machines (VMs) from the physical(More)
Borealis-R is a replication-based system for both fast and highly-available processing of data streams over wide-area networks. In Borealis-R, multiple operator replicas send outputs to downstream replicas, allowing each replica to use whichever data arrives first. To further reduce latency, replicas run without coordination, possibly processing data in(More)
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