4113 search results - page 223 / 823 » Watermarking Relational Databases |
159
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DPD
2002
15 years 4 months ago
2002
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites...
126
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CIKM
2011
Springer
14 years 4 months ago
2011
Springer
Typically, users interact with database systems by formulating queries. However, many times users do not have a clear understanding of their information needs or the exact content...
235
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
Abstract-- The inherent uncertainty of data present in numerous applications such as sensor databases, text annotations, and information retrieval motivate the need to handle impre...
254
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ICDE
2002
IEEE
16 years 5 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
157
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
Spatial and temporal database systems, both in theory and in practice, have developed dramatically over the past two decades to the point where usable commercial systems, underpin...