3225 search results - page 452 / 645 » Query Optimization by Stored Queries |
250
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ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
K-Anonymity has been proposed as a mechanism for protecting privacy in microdata publishing, and numerous recoding "models" have been considered for achieving kanonymity...
183
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VLDB
1999
ACM
15 years 10 months ago
1999
ACM
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...
185
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CCS
2004
ACM
15 years 12 months ago
2004
ACM
Access control can be used to ensure that database queries pertaining to sensitive information are not answered. This is not enough to prevent users from learning sensitive inform...
174
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SIGMOD
1998
ACM
15 years 10 months ago
1998
ACM
In this paper, we propose the Pyramid-Technique, a new indexing method for high-dimensional data spaces. The PyramidTechnique is highly adapted to range query processing using the...
192
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ESA
2008
Springer
15 years 8 months ago
2008
Springer
Abstract. We consider the problem of encoding a graph with n vertices and m edges compactly supporting adjacency, neighborhood and degree queries in constant time in the log n-bit ...