354 search results - page 27 / 71 » Efficient Processing of Spatial Joins Using R-Trees |
ICDE
2007
IEEE
14 years 9 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...
CIKM
2004
Springer
14 years 1 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...
CCS
2001
ACM
14 years 3 days 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 ...
TCAD
2008
13 years 8 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...
ACCV
2006
Springer
14 years 2 months 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...