6004 search results - page 6 / 1201 » Parallelizing query optimization |
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. Current skyline computation methods are rest...
PPAM
2005
Springer
14 years 29 days ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Aggregate measures summarizing subsets of data are valuable in exploratory analysis and decision support, especially when dependent aggregations can be easily specified and compute...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
EDBT
2010
ACM
14 years 18 days ago
2010
ACM
The wide availability of commodity multi-core systems presents an opportunity to address the latency issues that have plaqued XML query processing. However, simply executing multi...