167 search results - page 5 / 34 » Optimization of Query Plans in the presence of Access Limita... |
EDBTW
2006
Springer
13 years 11 months ago
2006
Springer
A data stream management system executes a large number of continuous queries in parallel. As stream characteristics and query workload change over time, the plan initially install...
CORR
2011
Springer
12 years 11 months ago
2011
Springer
The tremendous capacity gains promised by space division multiple access (SDMA) depend critically on the accuracy of the transmit channel state information. In the broadcast chann...
VLDB
1999
ACM
13 years 12 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...
AAAI
1997
13 years 9 months ago
1997
We consider the problem of query plan optimization in information brokers. Information brokers are programs that facilitate access to collections of information sources by hiding ...