6004 search results - page 240 / 1201 » Parallelizing query optimization |
DLOG
2011
13 years 2 months ago
2011
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
PODS
1994
ACM
14 years 2 months ago
1994
ACM
Traditionally, computational complexity has considered only static problems. Classical Complexity Classes such as NC, P, and NP are de ned in terms of the complexity of checking {...
CCGRID
2011
IEEE
13 years 2 months ago
2011
IEEE
Abstract—Parallel file systems are designed to mask the everincreasing gap between CPU and disk speeds via parallel I/O processing. While they have become an indispensable compo...
IEEEMSP
2002
IEEE
14 years 3 months ago
2002
IEEE
–This paper is an experimental study on the performance of the two major methods for macro-level similarity measurement: linear weighted merging and logical retrieval. Performanc...
JDWM
2006
13 years 10 months ago
2006
The pre-computation of data cubes is critical to improving the response time of On-Line Analytical Processing (OLAP) systems and can be instrumental in accelerating data mining ta...