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167
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ICDE
2006
IEEE
16 years 17 days ago
2006
IEEE
Due to the flexible structures of SQL, no general approach works efficiently for all kinds of queries. Some special kinds of queries can be further optimized for better performa...
148
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ASAP
2005
IEEE
16 years 4 days ago
2005
IEEE
We propose a digit-recurrence algorithm for division in real and complex number domains using a variable radix. The objective of the approach is to simplify the prescaling of the ...
119
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CEEMAS
2005
Springer
16 years 2 days ago
2005
Springer
Emergence is a widespread notion in complex systems, artificial life and multi-agent systems. In this paper, we try to clarify a specific emergence feature suggested by John Holl...
152
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ANTS
2004
Springer
15 years 12 months ago
2004
Springer
Given an algebraic number field K, such that [K : Q] is constant, we show that the problem of computing the units group O∗ K is in the complexity class SPP. As a consequence, w...
181
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COMPGEOM
2003
ACM
15 years 11 months ago
2003
ACM
We define the Morse-Smale complex of a Morse function over a 3-manifold as the overlay of the descending and ascending manifolds of all critical points. In the generic case, its ...