6746 search results - page 252 / 1350 » Multimodal Database Query |
248
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GIS
2005
ACM
16 years 5 months ago
2005
ACM
The R*-tree, as a state-of-the-art spatial index, has already found its way into commercial systems like Oracle. In this paper, we aim at improving query performance of the R*tree...
135
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EDBT
2006
ACM
16 years 4 months ago
2006
ACM
Incomplete databases, that is, databases that are missing data, are present in many research domains. It is important to derive techniques to access these databases efficiently. We...
256
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ASUNAM
2011
IEEE
14 years 3 months ago
2011
IEEE
—Users querying massive social networks or RDF databases are often not 100% certain about what they are looking for due to the complexity of the query or heterogeneity of the dat...
225
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
Abstract-- We introduce join scheduling algorithms that employ a balanced network utilization metric to optimize the use of all network paths in a global-scale database federation....
131
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COMPSAC
1996
IEEE
15 years 8 months ago
1996
IEEE
We present the architecture and design details of a logic database system that extends functionality in a number of ways. The system supports indefinite (non-Horn) facts in extens...