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DMDW
2001
194views Management» more  DMDW 2001»
13 years 9 months ago
Logical Multidimensional Database Design for Ragged and Unbalanced Aggregation
Research on logical design of OLAP cubes has tended to assume that the rollup hierarchy in a cube dimension takes the form of a balanced tree. However, experience from industry in...
Tapio Niemi, Jyrki Nummenmaa, Peter Thanisch
DM
2006
115views more  DM 2006»
13 years 8 months ago
3-Designs from PSL(2, q)
The group PSL(2, q) is 3-homogeneous on the projective line when q is a prime power congruent to 3 modulo 4 and therefore it can be used to construct 3-designs. In this paper, we ...
Peter J. Cameron, Hamid Reza Maimani, G. R. Omidi,...
IEEEHPCS
2010
13 years 7 months ago
An FPGA design for the stochastic Greenberg-Hastings cellular automata
The stochastic Greenberg-Hastings cellular automaton is a model that mimics the propagation of reaction-diffusion waves in active media. Notably, this model undergoes a phase tran...
Nikolaos Vlassopoulos, Nazim Fatès, Hugues ...
HYBRID
2005
Springer
14 years 1 months ago
Existence of Cascade Discrete-Continuous State Estimators for Systems on a Partial Order
In this paper, a cascade discrete-continuous state estimator on a partial order is proposed and its existence investigated. The continuous state estimation error is bounded by a mo...
Domitilla Del Vecchio, Richard M. Murray
PADL
2005
Springer
14 years 1 months ago
An Ordered Logic Program Solver
We describe the design of the OLPS system, an implementation of the preferred answer set semantics for ordered logic programs. The basic algorithm we propose computes the extended ...
Davy Van Nieuwenborgh, Stijn Heymans, Dirk Vermeir