6905 search results - page 1137 / 1381 » Querying Multidimensional Databases |
147
Voted
WWW
2003
ACM
16 years 3 months ago
2003
ACM
The binary form of an image does not tell what the image is about. It is possible to retrieve images from a database using pattern matching techniques, but usually textual descript...
220
Voted
SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Querying XML effectively and efficiently using declarative languages such as XQuery and XPath has been widely studied in both academic and industrial settings. Most RDBMS vendors ...
128
Voted
CCS
2007
ACM
15 years 8 months 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 ...
103
Voted
PODS
2010
ACM
15 years 7 months ago
2010
ACM
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...
117
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IDEAS
1999
IEEE
15 years 7 months ago
1999
IEEE
An object database management system (OODBMS) has been often criticized for its alleged insufficient scalability for a large-scale production system. We investigated the scalabili...