2853 search results - page 221 / 571 » On the Efficiency of Provenance Queries |
184
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DEXA
2008
Springer
15 years 8 months ago
2008
Springer
In this research, we propose to use the discrete cosine transform to approximate the cumulative distributions of data cube cells' values. The cosine transform is known to have...
174
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ISW
2007
Springer
16 years 22 days ago
2007
Springer
Abstract. We study the provable security of identity-based (ID-based) key agreement protocols. Although several published protocols have been proven secure in the random oracle mod...
188
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WEA
2007
Springer
16 years 21 days ago
2007
Springer
Many speed-up techniques for route planning in static graphs exist, only few of them are proven to work in a dynamic scenario. Most of them use preprocessed information, which has ...
156
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ESA
2000
Springer
15 years 10 months ago
2000
Springer
We show that a popular variant of the well known k-d tree data structure satisfies an important packing lemma. This variant is a binary spatial partitioning tree T defined on a set...
162
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DBSEC
2007
15 years 8 months ago
2007
Abstract. The database server is a crucial bottleneck in traditional inference control architecture, as it enforces highly computation-intensive auditing for all users who query th...