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IGARSS
2009
15 years 2 days ago
Complex Wavelet Regularization for Solving Inverse Problems in Remote Sensing
Many problems in remote sensing can be modeled as the minimization of the sum of a data term and a prior term. We propose to use a new complex wavelet based prior and an efficient...
Mikael Carlavan, Pierre Weiss, Laure Blanc-F&eacut...
105
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DM
2010
82views more  DM 2010»
15 years 2 months ago
The complexity of the weight problem for permutation and matrix groups
Given a metric d on a permutation group G, the corresponding weight problem is to decide whether there exists an element G such that d(, e) = k, for some given value k. Here we ...
Peter J. Cameron, Taoyang Wu
ECCC
2002
103views more  ECCC 2002»
15 years 2 months ago
Monotone complexity and the rank of matrices
We shall give simpler proofs of some lower bounds on monotone computations. We describe a simple condition on combinatorial structures, such that the rank of the matrix associated...
Pavel Pudlák
ENDM
2010
103views more  ENDM 2010»
14 years 11 months ago
Structural Analysis for Differential-Algebraic Systems: Complexity, Formulation and Facets
In this paper we consider the structural analysis problem for differential-algebraic systems with conditional equations. This consists, given a conditional differential algebraic ...
Mathieu Lacroix, Ali Ridha Mahjoub, Sébasti...
ENDM
2010
112views more  ENDM 2010»
14 years 11 months ago
On the complexity of the Eulerian closed walk with precedence path constraints problem
The Eulerian closed walk problem in a digraph is a well-known polynomial-time solvable problem. In this paper, we show that if we impose the feasible solutions to fulfill some pre...
Hervé Kerivin, Mathieu Lacroix, Ali Ridha M...