315 search results - page 24 / 63 » Runtime Optimization of Continuous Queries |
DEBU
2000
14 years 11 months ago
2000
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
ICDE
2011
IEEE
14 years 3 months ago
2011
IEEE
— Enterprise database systems handle a variety of diverse query workloads that are of different importance to the business. For example, periodic reporting queries are usually mi...
106
click to vote
EDBT
2004
ACM
15 years 12 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
RSCTC
2000
Springer
15 years 3 months ago
2000
Springer
The main task in decision tree construction algorithms is to find the "best partition" of the set of objects. In this paper, we investigate the problem of optimal binary ...
115
click to vote
JCP
2008
14 years 11 months ago
2008
In sensor networks, continuous query is commonly used for collecting periodical data from the objects under monitoring. This sort of queries needs to be carefully designed, in orde...