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The traditional file service is no longer sufficient for providing reliable and smart service to users as roaming in ubiquitous computing environments. In this paper, we propose a smart push file service model, called PushFS, which employs a push-oriented file service for ubiquitous storage. The design of PushFS introduces user-profiles to identify the environmental-context and file-semantics for...
As ubiquitous computing pursues naturalness and harmony, the need for context-ware ability in software middleware is growing to respond to highly dynamic computing environments. In order to facilitate the realization of such ability, the middleware infrastructure is required to acquisition, representation, fusion, and inference context information correctly and reliably. This paper is concerned with...
Ubiquitous computing enables dense sensing of the environment, offering unprecedented opportunities for observing the physical world. In many scientific applications in dense sensor arrays, efficient support for multi-resolution storage and drill-down queries is essential. We argue that technology trends in embedded platforms and flash memories call for rethinking multi-resolution storage designing...
Quality of Context (QoC) is critical in context reasoning, context refining, security policy configuring, etc. Many researches have been presented to model context and its quality by quantifying QoC-parameters. However, these quality models emphasis on the information-inherent QoC, while the influence of context-aware applications and environment situation on QoC is not well considered. In this paper,...
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