1464 search results - page 238 / 293 » Optimal Planning with ACO |
ICDE
2005
IEEE
14 years 1 months ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
MOBIQUITOUS
2005
IEEE
14 years 1 months ago
2005
IEEE
Recent research has led to the advent of software systems capable of performing query processing in sensor networks. They perform query processing in a sensor network by construct...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magni...
DATE
2003
IEEE
14 years 1 months ago
2003
IEEE
Wireplanning is an approach in which the timing of inputoutput paths is planned before modules are specified, synthesized or sized. If these global wires are optimally segmented ...
BTW
2003
Springer
14 years 1 months ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...