186 search results - page 24 / 38 » Continuous Monitoring of Distance Based Range Queries |
100
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IPPS
2007
IEEE
15 years 6 months ago
2007
IEEE
— An important class of queries over sensor networks are network-wide aggregation queries. In this work we study a class of aggregation queries which we refer to as aggregate thr...
116
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SEBD
2003
15 years 1 months ago
2003
Abstract. Sensor networks represent a non traditional source of information, as readings generated by sensors flow continuously, leading to an infinite stream of data. Traditiona...
123
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GIS
2010
ACM
14 years 9 months ago
2010
ACM
Research on Moving Object Databases (MOD) has resulted in sophisticated query mechanisms for moving objects and regions. Wireless Sensor Networks (WSN) support a wide range of app...
PVLDB
2008
14 years 12 months ago
2008
OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this ...
98
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GIS
2008
ACM
15 years 1 months ago
2008
ACM
Location-based services are increasingly popular and it is a key challenge to efficiently support query processing. We present a novel design to process large numbers of location...