722 search results - page 51 / 145 » The State Operator in Real Time Process Algebra |
110
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ICDE
2011
IEEE
14 years 3 months ago
2011
IEEE
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...
MODELS
2007
Springer
15 years 6 months ago
2007
Springer
The integration of different models, such as scenarios, is an important component of the requirements engineer’s work. If manually performed, the integration operation is error-...
169
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GIS
2006
ACM
16 years 26 days ago
2006
ACM
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
130
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HASKELL
2006
ACM
15 years 5 months ago
2006
ACM
Many numerical algorithms are specified in terms of operations on vectors and matrices. Matrix operations can be executed extremely efficiently using specialized linear algebra k...
SSDBM
2002
IEEE
15 years 4 months ago
2002
IEEE
In this paper, we study the effects of compression on bitmap indexes. The main operations on the bitmaps during query processing are bitwise logical operations such as AND, OR, N...