549 search results - page 103 / 110 » Data Expiration and Aggregate Queries |
WSNA
2003
ACM
15 years 2 months ago
2003
ACM
—In a sensor network, data routing is tightly coupled to the needs of a sensing task, and hence the application semantics. This paper introduces the novel idea of information-dir...
APCCM
2009
14 years 10 months ago
2009
Using traditional semantic data modeling, multi-level modeling can be achieved by representing objects in different abstraction hierarchies, namely classification, aggregation and...
PVLDB
2008
14 years 9 months ago
2008
Content Management Systems (CMS) store enterprise data such as insurance claims, insurance policies, legal documents, patent applications, or archival data like in the case of dig...
PVLDB
2008
14 years 9 months ago
2008
Summaries of massive data sets support approximate query processing over the original data. A basic aggregate over a set of records is the weight of subpopulations specified as a ...
SENSYS
2003
ACM
15 years 2 months ago
2003
ACM
The widespread deployment of sensor networks is on the horizon. One of the main challenges in sensor networks is to process and aggregate data in the network rather than wasting e...