429 search results - page 21 / 86 » Query Planning for Continuous Aggregation Queries over a Net... |
IS
2006
13 years 7 months ago
2006
In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks. Nodes of the network form an a...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
We study the problem of continuous relational query processing in Internet-scale overlay networks realized by distributed hash tables. We concentrate on the case of continuous two...
ICDE
2009
IEEE
14 years 2 months ago
2009
IEEE
— A paramount challenge in probabilistic databases is the scalable computation of confidences of tuples in query results. This paper introduces an efficient secondary-storage o...
DOLAP
2000
ACM
13 years 12 months ago
2000
ACM
We consider the view maintenance problem in a web-based environment, in which clients query information from databases, stored in the form of materialized data warehouses, without...