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NA
2011
373views Computer Vision» more  NA 2011»
13 years 5 months ago
On preconditioned MHSS iteration methods for complex symmetric linear systems
We propose a preconditioned variant of the modified HSS (MHSS) iteration method for solving a class of complex symmetric systems of linear equations. Under suitable conditions, w...
Zhong-Zhi Bai, Michele Benzi, Fang Chen
TGIS
2010
86views more  TGIS 2010»
13 years 4 months ago
A Road Network Selection Process Based on Data Enrichment and Structure Detection
The presented paper deals with a generic process for road network selection based on data enrichment and structure detection. The first step is to detect significant structures and...
Guillaume Touya
TIT
2010
96views Education» more  TIT 2010»
13 years 4 months ago
Wavelet packets of fractional Brownian motion: asymptotic analysis and spectrum estimation
This work provides asymptotic properties of the autocorrelation functions of the wavelet packet coefficients of a fractional Brownian motion. It also discusses the convergence spe...
Abdourrahmane M. Atto, Dominique Pastor, Gré...
TSP
2010
13 years 4 months ago
Estimation of ambiguity functions with limited spread
This paper proposes a new estimation procedure for the ambiguity function of a non-stationary time series. The stochastic properties of the empirical ambiguity function calculated...
Heidi Hindberg, Sofia C. Olhede
ICASSP
2011
IEEE
13 years 1 months ago
Itakura-Saito nonnegative matrix factorization with group sparsity
We propose an unsupervised inference procedure for audio source separation. Components in nonnegative matrix factorization (NMF) are grouped automatically in audio sources via a p...
Augustin Lefevre, Francis Bach, Cédric F&ea...