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» A Computational Complexity Theory in Membrane Computing
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COMGEO
2010
ACM
15 years 1 months ago
Access control systems for spatial data infrastructures and their administration
Today sophisticated concepts, languages and frameworks exist, that allow implementing powerful fine grained access control systems for protecting Web Services and spatial data in ...
Jan Herrmann
AAAI
1990
14 years 11 months ago
Approximation Reformulations
Although computers are widely used to simulate complex physical systems, crafting the underlying models that enable computer analysis remains difficult. When a model is created fo...
Daniel S. Weld
JMM2
2007
157views more  JMM2 2007»
14 years 9 months ago
Sub-band Implementation of Adaptive Nonlinear Filter for Adaptive Nonlinear Echo Cancellation
—The adaptive Volterra filter has been successfully applied in nonlinear acoustic echo cancellation (AEC) systems and nonlinear line echo cancellation systems, but its applicatio...
Dayong Zhou, Yunhua Wang, Victor E. DeBrunner, Lin...
CORR
2010
Springer
136views Education» more  CORR 2010»
14 years 7 months ago
Schaefer's theorem for graphs
Schaefer's theorem is a complexity classification result for so-called Boolean constraint satisfaction problems: it states that every Boolean constraint satisfaction problem ...
Manuel Bodirsky, Michael Pinsker
TCS
2011
14 years 4 months ago
Optimizing n-variate (n+k)-nomials for small k
We give a high precision polynomial-time approximation scheme for the supremum of any honest n-variate (n + 2)-nomial with a constant term, allowing real exponents as well as real...
Philippe P. Pébay, J. Maurice Rojas, David ...