3361 search results - page 214 / 673 » An Approach of Performance Evaluation in Authentic Database ... |
295
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GIS
2004
ACM
16 years 7 months ago
2004
ACM
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
273
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GIS
2005
ACM
16 years 7 months ago
2005
ACM
Databases of moving objects are important for air traffic control, ground traffic, and battlefield configurations. We introduce the (historical and spatial) range close-pair query...
160
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EDBT
2009
ACM
15 years 10 months ago
2009
ACM
We investigate the problem of refining SQL queries to satisfy cardinality constraints on the query result. This has applications to the many/few answers problems often faced by da...
180
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ERSHOV
1993
Springer
15 years 10 months ago
1993
Springer
Distributed database applications are a wide use of distributed systems. One of the major advantages of distributed database systems is the potential for achieving high availabili...
157
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CIKM
2009
Springer
16 years 1 months ago
2009
Springer
Most of existing methods of keyword search over relational databases find the Steiner trees composed of relevant tuples as the answers. They identify the Steiner trees by discove...