1860 search results - page 59 / 372 » A Model of Queries for Object-Oriented Databases |
122
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DBSEC
2006
15 years 1 months ago
2006
Abstract. Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling t...
109
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COOPIS
2004
IEEE
15 years 4 months ago
2004
IEEE
Abstract. We consider the use of a cluster system for managing autonomous databases. In order to improve the performance of read-only queries, we strive to exploit user requirement...
121
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SSDBM
1998
IEEE
15 years 4 months ago
1998
IEEE
We address the issue of designing effective query languages for OLAP databases. The basis of our investigation is MD, a new data model for multidimensional databases that, unlike ...
93
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TIME
2000
IEEE
15 years 4 months ago
2000
IEEE
We present a data model for movies and movie databases. A movie is considered to be a 2-dimensional semialgebraic figure that can change in time. We give a number of computabilit...
223
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between score and uncertainty makes traditio...