4397 search results - page 318 / 880 » Relational Algebra Operations |
142
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COMPGEOM
2006
ACM
15 years 10 months ago
2006
ACM
This paper examines the computation of the Voronoi diagram of a set of ellipses in the Euclidean plane. We propose the first complete algorithms, under the exact computation para...
131
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BIRTHDAY
2005
Springer
15 years 10 months ago
2005
Springer
This paper proposes a Compiled Labelled Deductive System, called ACCLDS, for reasoning about role-based access control in distributed systems, which builds upon Massacci’s tablea...
185
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BIRTHDAY
2004
Springer
15 years 10 months ago
2004
Springer
CSP was originally introduced as a parallel programming language in which sequential imperative processes execute concurrently and communicate by synchronized input and output. The...
160
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UML
2001
Springer
15 years 9 months ago
2001
Springer
UML is the de-facto standard language for Object-Oriented analysis and design of information systems. Persistent storage and extraction of data in such systems is supported by dat...
147
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VLDB
1994
ACM
15 years 9 months ago
1994
ACM
Physical data independence is touted as a central feature of modern database systems. Both relational and object-oriented systems, however, force users to frame their queries in t...