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ICTAI
2010
IEEE
15 years 4 months ago
A New Filtering Based on Decomposition of Constraint Sub-Networks
In this paper, we introduce a new partial consistency for constraint networks which is called Structural Consistency of level w and is denoted w-SC consistency. This consistency i...
Philippe Jégou, Cyril Terrioux
ICASSP
2009
IEEE
15 years 3 months ago
On the recovery of nonnegative sparse vectors from sparse measurements inspired by expanders
This paper studies compressed sensing for the recovery of non-negative sparse vectors from a smaller number of measurements than the ambient dimension of the unknown vector. We fo...
M. Amin Khajehnejad, Babak Hassibi
TOC
2010
147views Management» more  TOC 2010»
15 years 22 days ago
Quantum Expanders: Motivation and Construction
: We define quantum expanders in a natural way and give two constructions of quantum expanders, both based on classical expander constructions. The first construction is algebraic,...
Avraham Ben-Aroya, Oded Schwartz, Amnon Ta-Shma
STOC
2009
ACM
163views Algorithms» more  STOC 2009»
16 years 6 months ago
Non-monotone submodular maximization under matroid and knapsack constraints
Submodular function maximization is a central problem in combinatorial optimization, generalizing many important problems including Max Cut in directed/undirected graphs and in hy...
Jon Lee, Vahab S. Mirrokni, Viswanath Nagarajan, M...
FPGA
2010
ACM
209views FPGA» more  FPGA 2010»
16 years 2 months ago
FPGA power reduction by guarded evaluation
Guarded evaluation is a power reduction technique that involves identifying sub-circuits (within a larger circuit) whose inputs can be held constant (guarded) at specific times d...
Chirag Ravishankar, Jason Helge Anderson