113 search results - page 6 / 23 » Flexible Execution of Plans with Choice |
VLDB
1992
ACM
13 years 11 months ago
1992
ACM
In this paper, we explore the execution of pipelined hash joins in a multiprocessor-based database system. To improve the query execution, an innovative approach on query executio...
PVLDB
2008
13 years 7 months ago
2008
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Errors in estimating page counts can lead to poor choice of access methods and in turn to poor quality plans. Although there is past work in using execution feedback for accurate c...
NIPS
2008
13 years 9 months ago
2008
Markov Decision Processes (MDPs) have been extensively studied and used in the context of planning and decision-making, and many methods exist to find the optimal policy for probl...
ATAL
2008
Springer
13 years 9 months ago
2008
Springer
In the complex, dynamic domain of Air Traffic Control (ATC) many unexpected events can happen during the execution of a plan. Sometimes these disruptions make the plan infeasible ...