1179 search results - page 29 / 236 » Query Containment for Data Integration Systems |
148
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VISUALIZATION
1993
IEEE
15 years 8 months ago
1993
IEEE
In this paper, we describe a database query system that provides visual relevance feedback in querying large databases. The goal of our system is to support the query specificati...
122
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CAISE
2003
Springer
15 years 9 months ago
2003
Springer
Understanding the performance and dynamic behavior of workflow is crucial in being able to modify, maintain, and improve it. A particularly difficult aspect of measuring the perfor...
158
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ICDE
2005
IEEE
15 years 10 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...
227
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GIS
2004
ACM
16 years 5 months ago
2004
ACM
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...
134
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
We present an architecture and a set of challenges for peer database management systems. These systems team up to build a network of nodes (peers) that coordinate at run time most...