418 search results - page 16 / 84 » Optimizing Large Join Queries in Mediation Systems |
IV
2002
IEEE
14 years 17 days ago
2002
IEEE
In this paper a visual approach to querying in large spatial databases is presented. A diagrammatic technique utilising a data flow metaphor is used to express different kinds of...
SSDBM
2009
IEEE
14 years 2 months ago
2009
IEEE
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
We examine the problem of processing temporal joins in the presence of indexing schemes. Previous work on temporal joins has concentrated on non-indexed relations which were fully...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
Recent data stream systems such as TelegraphCQ have employed the well-known property of duality between data and queries. In these systems, query processing methods are classified...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
Intuitively, data management and data integration tools should be well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two sign...