3225 search results - page 526 / 645 » Query Optimization by Stored Queries |
128
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SEMWEB
2005
Springer
15 years 9 months ago
2005
Springer
Situation awareness involves the identification and monitoring of relationships among objects participating in an evolving situation. This problem in general is intractable (i.e.,...
125
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DOLAP
2004
ACM
15 years 9 months ago
2004
ACM
Accurate summary data is of paramount concern in data warehouse systems; however, there have been few attempts to completely characterize the ability to summarize measures. The su...
124
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SC
2004
ACM
15 years 9 months ago
2004
ACM
Large datasets, on the order of GB and TB, are increasingly common as abundant computational resources allow practitioners to collect, produce and store data at higher rates. As d...
137
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ADC
2004
Springer
15 years 9 months ago
2004
Springer
Aggregating spatial objects is a necessary step in generating spatial data cubes to support roll-up/drill-down operations. Current approaches face performance bottleneck issues wh...
143
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ADC
2001
Springer
15 years 8 months ago
2001
Springer
Transaction time is the time of a database transaction, i.e., an insertion, update, or deletion. A transactiontime database stores the transaction-time history of a database and s...