52 citations · 170 across the 22 of their papers we have counts for
27 papers
A spectral clustering-type algorithm for the consistent estimation of the Hurst distribution in moderately high dimensions
Patrice Abry, Gustavo Didier, Oliver Orejola +1
Scale invariance (fractality) is a prominent feature of the large-scale behavior of many stochastic systems. In this work, we construct an algorithm for the statistical identificat…
Bayesian Multifractal Image Segmentation
Kareth M. León-López, Abderrahim Halimi, Jean-Yves Tourneret +1
Multifractal analysis (MFA) provides a framework for the global characterization of image textures by describing the spatial fluctuations of their local regularity based on the mul…
On joint eigen-decomposition of matrices
Erik Troedsson, Daniel Falkowski, Carl-Fredrik Lidgren +2
The problem of approximate joint diagonalization of a collection of matrices arises in a number of diverse engineering and signal processing problems. This problem is usually cast…
In-Flight Estimation of Instrument Spectral Response Functions Using Sparse Representations
Jihanne El Haouari, Jean-Michel Gaucel, Christelle Pittet +2
Accurate estimates of Instrument Spectral Response Functions (ISRFs) are crucial in order to have a good characterization of high resolution spectrometers. Spectrometers are compos…
On the empirical spectral distribution of large wavelet random matrices based on mixed-Gaussian fractional measurements in moderately high dimensions
Patrice Abry, Gustavo Didier, Oliver Orejola +1
In this paper, we characterize the convergence of the (rescaled logarithmic) empirical spectral distribution of wavelet random matrices. We assume a moderately high-dimensional fra…
Multivariate selfsimilarity: Multiscale eigen-structures for selfsimilarity parameter estimation
Charles-Gérard Lucas, Gustavo Didier, Herwig Wendt +1
Scale-free dynamics, formalized by selfsimilarity, provides a versatile paradigm massively and ubiquitously used to model temporal dynamics in real-world data. However, its practic…