732 search results - page 39 / 147 » Querying Multimedia Data Sources and Databases |
TOOLS
1999
IEEE
14 years 2 months ago
1999
IEEE
An item pool with multimedia data is a finclamental part of our project? Computerized Adaptive Test System of Chinese Proficiency. This p p e r intends to present a design of a mu...
WWW
2005
ACM
14 years 11 months ago
2005
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
ICDE
2005
IEEE
14 years 4 months ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
ER
1999
Springer
14 years 2 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materi...
ICDE
1997
IEEE
15 years 1 hour ago
1997
IEEE
A mediator is a domain-speci c tool to support uniform access to multiple heterogeneous information sources and to abstract and combine data from different but related databases t...