6746 search results - page 1097 / 1350 » Multimodal Database Query |
219
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GIS
2010
ACM
15 years 5 months ago
2010
ACM
In this paper we focus on the problem of continuously monitoring the set of Reverse k-Nearest Neighbors (RkNNs) of a query object in a moving object database using a client server...
283
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ICDE
2006
IEEE
16 years 8 months ago
2006
IEEE
Counting in general, and estimating the cardinality of (multi-) sets in particular, is highly desirable for a large variety of applications, representing a foundational block for ...
196
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WWW
2003
ACM
16 years 7 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...
279
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SIGMOD
2007
ACM
16 years 6 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 ...
175
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CCS
2007
ACM
16 years 23 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 ...