6004 search results - page 135 / 1201 » Parallelizing query optimization |
VLDB
1997
ACM
14 years 2 months ago
1997
ACM
Businesses today need to interrelate data stored in diverse systems with differing capabilities, ideally via a single high-level query interface. We present the design of a query ...
SIGMOD
2001
ACM
14 years 10 months ago
2001
ACM
Over the last decades, improvements in CPU speed have outpaced improvements in main memory and disk access rates by orders of magnitude, enabling the use of data compression techn...
PDP
2002
IEEE
14 years 3 months ago
2002
IEEE
A parallel simulated annealing algorithm to solve the vehicle routing problem with time windows is presented. The objective is to find the best possible solutions to some wellkno...
VLDB
2005
ACM
14 years 3 months ago
2005
ACM
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
SIGMOD
2004
ACM
14 years 10 months ago
2004
ACM
Trees and graphs are widely used to model biological databases. Providing efficient algorithms to support tree-based or graph-based querying is therefore an important issue. In th...