297 search results - page 12 / 60 » Polynomial heuristics for query optimization |
VLDB
1997
ACM
13 years 12 months ago
1997
ACM
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
ORL
1998
13 years 7 months ago
1998
Good heuristic solutions for large Multisource Weber problems can be obtained by solving related p-median problems in which potential locations of the facilities are users location...
DCOSS
2008
Springer
13 years 9 months ago
2008
Springer
Sensor networks can be viewed as large distributed databases, and SQL-like high-level declarative languages can be used for data and information retrieval. Energy constraints make ...
IPPS
2009
IEEE
14 years 2 months ago
2009
IEEE
In this paper, we explore the problem of mapping filtering services on large-scale heterogeneous platforms. Two important optimization criteria should be considered in such a fra...
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
The development of a distributed database systemrequires effective solutions to many complex and interrelated design problems. The cost dependenciesbetween query optimization and ...