【作者】 毕冉； 李建中；

【Author】 BI Ran1~,LI Jian-zhong~(1,2) (1.School of Computer Science and Technology,Harbin Institute of Technology,Harbin 150001,China;2.School of Computer Science and Technology, Heilongjiang University,Harbin 150080,China)

【机构】 哈尔滨工业大学计算机科学与技术学院； 黑龙江大学计算机科学与技术学院；

【摘要】 随着传感器技术、微机电系统、现代网络和无线通信等技术的进步,具有感知能力、计算能力和通信能力的微型传感器开始在世界范围内出现。传感器网络由大量而廉价的微型传感器节点组成,能够协作地实时监测、感知和采集网络分布区域内的各种环境或对象的信息。高效地查询处理已经成为一个重要并具挑战性的问题。介绍了传感器网络的特点,分布式环境下的Top-k查询算法并重点介绍当前的部分Top-k查询算法。更多还原

【Abstract】 Recent advances in sensing techniques,embedded computing techniques,distributed information processing techniques and communication techniques have enabled the development of wireless sensor networks.Sensor networks were constituted of a large mount of cheap sensor nodes,they can cooperate to detect,perceive,and collect data in the areas of networks in any environment.The task of efficiently querying these networks was an important and challenging problem,introduced the characters of sensor networks and recommend the Top-k query processing algorithms in sensor networks nowadays.更多还原