Publications associées à Décomposition d'une matrice en éléments propres

MATHICSE Technical Report : The index of singular zeros of harmonic mappings of anti-analytic degree one

We study harmonic mappings of the form f(z) = h(z) 􀀀 z, where h is an analytic function. In particular we are interested in the index (a generalized multiplicity) of the zeros of such functions. Outside the critical set of f, where the Jacobian of f is non ...

MATHICSE2017

Recompression Of Hadamard Products Of Tensors In Tucker Format

Daniel Kressner, Lana Perisa

The Hadamard product features prominently in tensor-based algorithms in scientific computing and data analysis. Due to its tendency to significantly increase ranks, the Hadamard product can represent a major computational obstacle in algorithms based on lo ...

Siam Publications2017

Localization of Sound Sources in a Room with One Microphone

Pierre Vandergheynst, Hervé Lissek, Helena Peic Tukuljac

Estimation of the location of sound sources is usually done using microphone arrays. Such settings provide an environment where we know the difference between the received signals among different microphones in the terms of phase or attenuation, which enab ...

Spie-Int Soc Optical Engineering2017

Isogeometric analysis and proper orthogonal decomposition for parabolic problems

Alfio Quarteroni, Shengfeng Zhu

We investigate the combination of Isogeometric Analysis (IGA) and proper orthogonal decomposition (POD) based on the Galerkin method for model order reduction of linear parabolic partial differential equations. For the proposed fully discrete scheme, the a ...

Springer Heidelberg2017

Practical Sketching Algorithms For Low-Rank Matrix Approximation

Volkan Cevher, Alp Yurtsever

This paper describes a suite of algorithms for constructing low-rank approximations of an input matrix from a random linear image, or sketch, of the matrix. These methods can preserve structural properties of the input matrix, such as positive-semidefinite ...

Society for Industrial and Applied Mathematics2017

Emergent transport in a many-body open system driven by interacting quantum baths

Vincenzo Savona, Eduardo Carlo Mascarenhas Moraes, Juris Reisons

We analyze an open many-body system that is strongly coupled at its boundaries to interacting quantum baths. We show that the two-body interactions inside the baths induce emergent phenomena in the spin transport. The system and baths are modeled as indepe ...

Amer Physical Soc2017

Evaluation of ICA-Based ICTD for PolSAR Data Analysis Using a Sliding Window Approach: Convergence Rate, Gaussian Sources, and Spatial Correlation

Nikola Besic

Polarimetric incoherent target decomposition aims at accessing physical parameters of illuminated scatters through the analysis of the target coherence or covariance matrix. In this framework, independent component analysis (ICA) was recently proposed as a ...

Institute of Electrical and Electronics Engineers2016

Projection Methods For Large-Scale T-Sylvester Equations

Daniel Kressner

The matrix Sylvester equation for congruence, or T-Sylvester equation, has recently attracted considerable attention as a consequence of its close relation to palindromic eigenvalue problems. The theory concerning T-Sylvester equations is rather well under ...

Amer Mathematical Soc2016

Compressive PCA for Low-Rank Matrices on Graphs

Pierre Vandergheynst, Gilles Puy, Nathanaël Perraudin, Nauman Shahid

We introduce a novel framework for an approxi- mate recovery of data matrices which are low-rank on graphs, from sampled measurements. The rows and columns of such matrices belong to the span of the first few eigenvectors of the graphs constructed between ...

Ieee-Inst Electrical Electronics Engineers Inc2016

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Décomposition d'une matrice en éléments propres

MATHICSE Technical Report : The index of singular zeros of harmonic mappings of anti-analytic degree one

MRI artifact correction using sparse plus low-rank decomposition of annihilating filter-based hankel matrix

Recompression Of Hadamard Products Of Tensors In Tucker Format

Localization of Sound Sources in a Room with One Microphone

Isogeometric analysis and proper orthogonal decomposition for parabolic problems

Practical Sketching Algorithms For Low-Rank Matrix Approximation

Emergent transport in a many-body open system driven by interacting quantum baths

Evaluation of ICA-Based ICTD for PolSAR Data Analysis Using a Sliding Window Approach: Convergence Rate, Gaussian Sources, and Spatial Correlation

Projection Methods For Large-Scale T-Sylvester Equations

Compressive PCA for Low-Rank Matrices on Graphs

Graph Chatbot

Chattez avec Graph Search

Practical Sketching Algorithms For Low-Rank Matrix Approximation

Recompression Of Hadamard Products Of Tensors In Tucker Format

MATHICSE Technical Report : The index of singular zeros of harmonic mappings of anti-analytic degree one

Localization of Sound Sources in a Room with One Microphone

MRI artifact correction using sparse plus low-rank decomposition of annihilating filter-based hankel matrix

Isogeometric analysis and proper orthogonal decomposition for parabolic problems

Emergent transport in a many-body open system driven by interacting quantum baths

Evaluation of ICA-Based ICTD for PolSAR Data Analysis Using a Sliding Window Approach: Convergence Rate, Gaussian Sources, and Spatial Correlation

Projection Methods For Large-Scale T-Sylvester Equations

Compressive PCA for Low-Rank Matrices on Graphs