1497 search results - page 204 / 300 » Constraint Databases: A Survey |
171
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CCS
2007
ACM
16 years 16 days ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
159
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CIKM
2004
Springer
15 years 11 months ago
2004
Springer
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
164
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CVPR
2007
IEEE
16 years 8 months ago
2007
IEEE
Matching local features across images is often useful when comparing or recognizing objects or scenes, and efficient techniques for obtaining image-to-image correspondences have b...
145
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ICIP
2006
IEEE
16 years 8 months ago
2006
IEEE
A fingerprinting design extracts discriminating features, called fingerprints. The extracted features are unique and specific to each image/video. The visual hash is usually a glo...
309
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ICDE
2008
IEEE
16 years 7 months ago
2008
IEEE
Many new applications that involve decision making need online (i.e., OLAP-styled) preference analysis with multidimensional boolean selections. Typical preference queries includes...