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Various methods have been proposed for monitoring continuously varying event-region scenarios using wireless sensor networks (WSNs). However, these methods use either a centralized approach, in which a powerful control center is used to reconstruct the entire random field, or a semi-centralized approach, in which extensive real-value data exchange takes place among the sensors. By contrast, this paper...
User/environmental context detection on mobile devices benefits end-users by providing information support to various kinds of applications. A pervasive question, however, is how the sensors on the mobile device should be sampled energy efficiently without sacrificing too much detection accuracy. In this paper, we formulate the user state sensing problem as the intermittent sampling of a semi-Markov...
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