651 search results - page 115 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
CCGRID
2007
IEEE
14 years 3 months ago
2007
IEEE
Grid applications need efficient access to information about available resources and services. Typically, this access is provided by information services that are often organized ...
UC
2005
Springer
14 years 2 months ago
2005
Springer
Consider a database most of whose entries are marked but the precise fraction of marked entries is not known. What is known is that the fraction of marked entries is 1 − , where ...
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
We consider the problem of horizontally partitioning a dynamic relation across a large number of disks/nodes by the use of range partitioning. Such partitioning is often desirable...
DAWAK
1999
Springer
14 years 1 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over relations that are stored in distributed heterogeneous databases. The selection of views for...
DAIS
2010
13 years 10 months ago
2010
The growing needs in computational power to answer to the increasing number of on-line services and the complexity of applications makes it mandatory to build corresponding hardwar...