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Adopting filtering mechanism of dynamic filtering windows installed on sensor nodes to process top-queries is an important research direction in wireless sensor networks. The mechanism can reduce transmissions of redundant data by utilizing filters. However, existing algorithms based on filters consume a vast amount of energy due to filter updating. In this paper, an energyefficient top-query technique based on adaptive filters is proposed. Due to updating filters consuming a large amount ofdoi:10.1155/2015/304198 fatcat:dyu6pixlc5ewhfxpgew2ms36tm