1430 search results - page 161 / 286 » Query operations for moving objects database systems |
167
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VLDB
2004
ACM
15 years 11 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
194
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ER
1998
Springer
15 years 10 months ago
1998
Springer
Data warehouses are complex systems that have to deliver highly-aggregated, high quality data from heterogeneous sources to decision makers. Due to the dynamic change in the requir...
158
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SAC
2005
ACM
15 years 12 months ago
2005
ACM
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague ...
181
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EDBT
2010
ACM
15 years 9 months ago
2010
ACM
Data mining is increasingly performed by people who are not computer scientists or professional programmers. It is often done as an iterative process involving multiple ad-hoc tas...
154
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COOPIS
2004
IEEE
15 years 10 months ago
2004
IEEE
The model of overloading views is a facility allowing the programmer to separate some kinds of crosscutting concerns that occur during design, implementation and maintenance of dat...