20126 search results - page 3371 / 4026 » Timed Transition Systems |
282
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ICDE
2005
IEEE
16 years 9 months ago
2005
IEEE
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...
298
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ICDE
2004
IEEE
16 years 9 months ago
2004
IEEE
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...
329
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ICDE
2002
IEEE
16 years 9 months ago
2002
IEEE
Spatio-temporal databases store information about the positions of individual objects over time. In many applications however, such as traffic supervision or mobile communication ...
191
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VIS
2007
IEEE
16 years 8 months ago
2007
IEEE
We present a general framework for the modeling and optimization of scalable multi-projector displays. Based on this framework, we derive algorithms that can robustly optimize the ...
211
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VIS
2004
IEEE
16 years 8 months ago
2004
IEEE
We present a system for simulating and visualizing the propagation of dispersive contaminants with an application to urban security. In particular, we simulate airborne contaminan...