624 search results - page 68 / 125 » Mutant Query Plans |
DEBU
2002
13 years 9 months ago
2002
An increasing number of business users and software applications need to process information that is accessible via multiple diverse information systems, such as database systems,...
ICDE
2010
IEEE
14 years 4 months ago
2010
IEEE
Abstract— Developing a full-fledged cost-based XQuery optimizer is a fairly complex task. Nowadays, there is little knowledge concerning suitable cost formulae and optimization ...
COLING
1990
13 years 11 months ago
1990
This paper describes the general architecture of generation in the ACORDproject. The central module of this architecture is a planning component, which allows to plan single sente...
EDBT
2008
ACM
14 years 10 months ago
2008
ACM
Skyline query is of great importance in many applications, such as multi-criteria decision making and business planning. In particular, a skyline point is a data object in the dat...
ICDE
2005
IEEE
14 years 3 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...