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In this paper, we propose a distributed event contour tracking (DECT) algorithm for multi-sink wireless sensor networks. We focus on the convex-shaped area event, which has a large effect region and may trigger many sensors at the same time. An area event may change its shape or move with time. Wild animal migration, army march, gas diffusion and chemical pollution are typical examples of area events...
Similarity search in high frequency time series of domains as diverse as finance, marketing and industry has attracted much research attention recently. The main notions used in similarity search for time series are defined in a formal way. And a fast algorithm of similarity search based on random projection for high frequency time series is proposed. In order to achieve the high-level representation...
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