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CORR
2007
Springer
183views Education» more  CORR 2007»
15 years 4 months ago
Compressed Sensing and Redundant Dictionaries
This article extends the concept of compressed sensing to signals that are not sparse in an orthonormal basis but rather in a redundant dictionary. It is shown that a matrix, whic...
Holger Rauhut, Karin Schnass, Pierre Vandergheynst
IJRR
2006
96views more  IJRR 2006»
15 years 4 months ago
Unmanned Ground Vehicle Navigation Using Aerial Ladar Data
In this paper, we investigate the use of overhead high-resolution three-dimensional (3-D) data for enhancing the performances of an Unmanned Ground Vehicle (UGV) in vegetated terra...
Nicolas Vandapel, Raghavendra Donamukkala, Martial...
JGO
2008
75views more  JGO 2008»
15 years 4 months ago
On the second conjugate of several convex functions in general normed vector spaces
When dealing with convex functions defined on a normed vector space X the biconjugate is usually considered with respect to the dual system (X, X ), that is, as a function defined...
Constantin Zalinescu
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CORR
2007
Springer
136views Education» more  CORR 2007»
15 years 4 months ago
Sparsity in time-frequency representations
We consider signals and operators in finite dimension which have sparse time-frequency representations. As main result we show that an S-sparse Gabor representation in Cn with re...
Götz E. Pfander, Holger Rauhut
JMLR
2008
79views more  JMLR 2008»
15 years 4 months ago
Manifold Learning: The Price of Normalization
We analyze the performance of a class of manifold-learning algorithms that find their output by minimizing a quadratic form under some normalization constraints. This class consis...
Yair Goldberg, Alon Zakai, Dan Kushnir, Yaacov Rit...