5221 search results - page 249 / 1045 » An On-line Problem Database |
166
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DBPL
1997
Springer
15 years 10 months ago
1997
Springer
We examine the power of incremental evaluation systems that use an SQL-like language for maintaining recursively-de ned views. We show that recursive queries such as transitive clo...
177
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ER
2007
Springer
15 years 10 months ago
2007
Springer
This paper presents a methodology to derive views over a relational database by applying a sequence of appropriately defined operations to the global schema. Such tailoring and com...
170
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ICDE
2007
IEEE
15 years 10 months ago
2007
IEEE
The problem of trajectory similarity in moving object databases is a relatively new topic in the spatial and spatiotemporal database literature. Existing work focuses on the spati...
166
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ER
2000
Springer
15 years 10 months ago
2000
Springer
One of the obstacles that hinder database trigger systems from their wide deployment is the lack of tools that aid users in creating trigger rules. Similar to understanding and spe...
163
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DAWAK
2008
Springer
15 years 8 months ago
2008
Springer
Abstract. Data mining algorithms are often embedded in more complex systems, serving as the provider of data for internal decision making within these systems. In this paper we add...