297 search results - page 20 / 60 » Polynomial heuristics for query optimization |
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
CIA
2007
Springer
14 years 1 months ago
2007
Springer
Coalitions are often required for multi-agent collaboration. In this research, we consider tasks that can only be completed with the combined efforts of multiple agents using appro...
ISCAS
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper we present two polynomial time-complexity heuristic algorithms for optimization of gate-oxide leakage (tunneling current) during behavioral synthesis through simulta...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Sensor networks and other distributed information systems (such as the Web) must frequently access data that has a high per-attribute acquisition cost, in terms of energy, latency...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
As a simple XML query language but with enough expressive power, XPath has become very popular. To expedite evaluation of XPath queries, we consider the problem of rewriting XPath...