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COCOON
2009
Springer
14 years 10 months ago
Separating NE from Some Nonuniform Nondeterministic Complexity Classes
We investigate the question whether NE can be separated from the reduction closures of tally sets, sparse sets and NP. We show that (1) NE RNP no(1)-T (TALLY); (2)NE RSN m (SPARS...
Bin Fu, Angsheng Li, Liyu Zhang
FOCS
1990
IEEE
15 years 1 months ago
The Lattice Reduction Algorithm of Gauss: An Average Case Analysis
The lattice reduction algorithm of Gauss is shown to have an average case complexity which is asymptotic to a constant.
Brigitte Vallée, Philippe Flajolet
APPROX
2008
Springer
88views Algorithms» more  APPROX 2008»
14 years 11 months ago
Limitations of Hardness vs. Randomness under Uniform Reductions
We consider (uniform) reductions from computing a function f to the task of distinguishing the output of some pseudorandom generator G from uniform. Impagliazzo and Wigderson [IW]...
Dan Gutfreund, Salil P. Vadhan
GLOBECOM
2006
IEEE
15 years 3 months ago
An Adaptive-Scaling Tone Reservation Algorithm for PAR Reduction in OFDM Systems
— Existing tone-reservation algorithms (such as the controlled clipper algorithm) for OFDM require a number of iterations to ensure the reduction of Peak-to-Average Power Ratio (...
Luqing Wang, Chintha Tellambura
EUSFLAT
2001
14 years 11 months ago
Reduction to independent variables: from normal distribution to general statistical case to fuzzy
In many practical problems, we must combine ("fuse") data represented in different formats, e.g., statistical, fuzzy, etc. The simpler the data, the easier to combine th...
Mourad Oussalah, Hung T. Nguyen, Vladik Kreinovich