589 search results - page 1 / 118 » Optimized Query Evaluation Using Cooperative Sorts |
ICDE
2010
IEEE
14 years 2 months ago
2010
IEEE
— Many applications require sorting a table over multiple sort orders: generation of multiple reports from a table, evaluation of a complex query that involves multiple instances...
GECCO
2004
Springer
13 years 10 months ago
2004
Springer
The following paper describes a cooperative coevolutionary algorithm which incorporates a novel collaboration formation mechanism. It encourages rewarding of components participati...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
Nested iteration is an important technique for query evaluation. It is the default way of executing nested subqueries in SQL. Although decorrelation often results in cheaper non-n...
PEPM
2010
ACM
14 years 1 months ago
2010
ACM
We show how to efficiently evaluate generic map-filter-product queries, generalizations of select-project-join (SPJ) queries in relational algebra, based on a combination of two...
VLDB
1989
ACM
13 years 9 months ago
1989
ACM
An Event-Join combinestemporaljoin and outerjoin properties into a single operation. It is mostly used to group temporal attributes of an entity into a single relation. In this pa...