133 search results - page 4 / 27 » Flow Algorithms for Parallel Query Optimization |
SIGMOD
2009
ACM
14 years 2 months ago
2009
ACM
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
GCC
2007
Springer
14 years 1 months ago
2007
Springer
Data integration has evolved to provide efficient data management across distributed and heterogeneous data sources in grid environment. However, existing works in data integratio...
HPDC
2000
IEEE
14 years 7 hour ago
2000
IEEE
The dQUOB system satis es client need for speci c information from high-volume data streams. The data streams we speak of are the ow of data existing during large-scale visualizat...
IPPS
2002
IEEE
14 years 15 days ago
2002
IEEE
The convergence of iterative methods used to solve the linear systems arising in incompressible flow problems is sensitive to flow parameters such as the Reynolds number, time s...
PPAM
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...