354 search results - page 27 / 71 » Efficient Processing of Spatial Joins Using R-Trees |
278
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Location-based spatial queries (LBSQs) refer to spatial queries whose answers rely on the location of the inquirer. Efficient processing of LBSQs is of critical importance with th...
185
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CIKM
2004
Springer
15 years 12 months ago
2004
Springer
Indexing XML is crucial for efficient XML query processing. We propose a compact tree (Ctree) for XML indexing, which provides not only concise path summaries at group level but a...
159
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CCS
2001
ACM
15 years 10 months ago
2001
ACM
Encryption is widely used to enforce usage rules for digital content. In many scenarios content is encrypted using a group key which is known to a group of users that are allowed ...
191
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TCAD
2008
15 years 6 months ago
2008
We present an efficient optimization scheme for gate sizing in the presence of process variations. Our method is a worst-case design scheme, but it reduces the pessimism involved i...
169
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ACCV
2006
Springer
16 years 13 days ago
2006
Springer
The implementation of a codec for real time applications such as video-conferencing at low bit rates is discussed. The discrete cosine transform has been used for compression, both...