窗口聚集查询
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The simulation results show that, the larger the target window is, the better the performance both the query accuracy and latency of our DWAQ aggregation algorithm presented in this paper is;
仿真结果表明，随着目标窗口变大，本文提出的DWAQ聚集算法在查询准确性和延迟上有一定的优越性；
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