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The Personal Cloud model is a mainstream service that meets the growing demand of millions of users for reliable off-site storage. However, despite their broad adoption, very little is known about the quality of service (QoS) of Personal Clouds. In this paper, we present a measurement study of three major Personal Clouds: DropBox, Box and SugarSync.(More)
The design of elastic file synchronization services like Dropbox is an open and complex issue yet not unveiled by the major commercial providers, as it includes challenges like <i>fine-grained programmable elasticity</i> and <i>efficient change notification</i> to millions of devices. In this paper, we propose a novel architecture for file synchronization(More)
In a Cloud environment, the ability to share and persist objects simplifies the design of applications. Storing objects in a NoSQL database ensures their availability and provides scalability to applications. When Object-NoSQL Mapping is performed at the client side, objects that are accessed by several clients are repeatedly converted between their(More)
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