640 search results - page 31 / 128 » Query Optimization Using Multiple SIP Strategies |
IPPS
2006
IEEE
14 years 5 months ago
2006
IEEE
This paper exploits a previously developed analytical modeling framework to compare several variations of the basic flooding search strategy in unstructured decentralized peer-to...
GECCO
2008
Springer
14 years 11 hour ago
2008
Springer
The correct choice of an evolutionary algorithm, a genetic representation for the problem being solved (as well as their associated variation operators) and the appropriate values...
PVM
2007
Springer
14 years 5 months ago
2007
Springer
We propose a parallel MPI search engine that is capable of automatically switching between asynchronous message passing and bulk-synchronous message passing modes of operation. Whe...
BTW
2005
Springer
14 years 4 months ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
PVLDB
2010
13 years 9 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...