6004 search results - page 150 / 1201 » Parallelizing query optimization |
SIGMOD
2001
ACM
14 years 10 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
ICDE
2010
IEEE
14 years 7 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...
VLDB
1998
ACM
14 years 2 months ago
1998
ACM
The goal of the COKO-KOLA project [10, 91 is to express rules of rule-basedoptimizers in a mannerpermitting verification with a theoremprover. In [IO], we consideredquerytransform...
ICDM
2007
IEEE
14 years 4 months ago
2007
IEEE
Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. In this paper, we compare the memory requi...
IDEAS
2002
IEEE
14 years 3 months ago
2002
IEEE
Boolean expression simplification is a well-known problem in the history of Computer Science. The problem of determining prime implicates from an arbitrary Boolean expression has...