251 search results - page 16 / 51 » Processing Multiple Aggregation Queries in Geo-Sensor Networ... |
WSDM
2009
ACM
14 years 1 months ago
2009
ACM
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
DBISP2P
2005
Springer
13 years 8 months ago
2005
Springer
Abstract. We study the problem of evaluating RDF queries over structured overlay networks. We consider the publish/subscribe scenario where nodes subscribe with long-standing queri...
IPSN
2005
Springer
14 years 7 days ago
2005
Springer
A wireless sensor network consists of a large number of small, resource-constrained devices and usually operates in hostile environments that are prone to link and node failures. ...
VLDB
2005
ACM
14 years 6 days ago
2005
ACM
Emerging large-scale monitoring applications require continuous tracking of complex dataanalysis queries over collections of physicallydistributed streams. Effective solutions hav...
ICDE
2006
IEEE
14 years 23 days ago
2006
IEEE
We consider the problem of query optimization in distributed stream based systems where multiple continuous queries may be executing simultaneously. In such systems, distribution ...