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SYMMETRY
2010
90views more  SYMMETRY 2010»
15 years 1 months ago
Orientational Sampling Schemes Based on Four Dimensional Polytopes
Abstract: The vertices of regular four-dimensional polytopes are used to generate sets of uniformly distributed three-dimensional rotations, which are provided as tables of Euler a...
Salvatore Mamone, Giuseppe Pileio, Malcolm H. Levi...
SSDBM
2008
IEEE
131views Database» more  SSDBM 2008»
16 years 29 days ago
Linked Bernoulli Synopses: Sampling along Foreign Keys
Random sampling is a popular technique for providing fast approximate query answers, especially in data warehouse environments. Compared to other types of synopses, random sampling...
Rainer Gemulla, Philipp Rösch, Wolfgang Lehne...
SPAA
2006
ACM
16 years 16 days ago
On space-stretch trade-offs: upper bounds
One of the fundamental trade-offs in compact routing schemes is between the space used to store the routing table on each node and the stretch factor of the routing scheme – th...
Ittai Abraham, Cyril Gavoille, Dahlia Malkhi
PACT
2005
Springer
16 years 2 days ago
Optimal Behavior of a Moving Creature in the Cellular Automata Model
The goal of our investigation is to find automatically the best rule for a cell in the cellular automata model. The cells are either of type Obstacle, Empty or Creature. Only Crea...
Mathias Halbach, Rolf Hoffmann
DAC
2010
ACM
15 years 10 months ago
LUT-based FPGA technology mapping for reliability
As device size shrinks to the nanometer range, FPGAs are increasingly prone to manufacturing defects. We anticipate that the ability to tolerate multiple defects will be very impo...
Jason Cong, Kirill Minkovich