651 search results - page 46 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
DEBU
2002
13 years 8 months ago
2002
An increasing number of business users and software applications need to process information that is accessible via multiple diverse information systems, such as database systems,...
ADC
2006
Springer
14 years 3 months ago
2006
Springer
With the increasing popularity of XML, there arises the need for managing and querying information in this form. Several query languages, such as XQuery, have been proposed which ...
ICPADS
2005
IEEE
14 years 2 months ago
2005
IEEE
Data warehouses store large volumes of data according to a multidimensional model with dimensions representing different axes of analysis. OLAP systems (OnLine Analytical Processi...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
Wireless sensor networks generate a vast amount of data. This data, however, must be sparingly extracted to conserve energy, usually the most precious resource in battery-powered ...