708 search results - page 29 / 142 » A Genetic Algorithm for Database Query Optimization |
FQAS
2006
Springer
13 years 11 months ago
2006
Springer
We consider the problem of optimizing processing of batches of frequent itemset queries. The problem is a particular case of multiple-query optimization, where the goal is to minim...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
In several mobile applications, the data items broadcast are dependent upon one another. However, most prior studies on broadcasting dependent data mainly consider single broadcas...
VLDB
2004
ACM
14 years 7 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
VLDB
2011
ACM
13 years 2 months ago
2011
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...