Publications associées à Matrice orthogonale

Vectorial scanning force microscopy using a nanowire sensor

Self-assembled nanowire (NW) crystals can be grown into nearly defect-free nanomechanical resonators with exceptional properties, including small motional mass, high resonant frequency and low dissipation. Furthermore, by virtue of slight asymmetries in ge ...

Nature Publishing Group2017

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

Limits on Sparse Support Recovery via Linear Sketching with Random Expander Matrices

Volkan Cevher, Jonathan Mark Scarlett

Linear sketching is a powerful tool for the problem of sparse signal recovery, having numerous applications such as compressive sensing, data stream computing, graph sketching, and routing. Motivated by applications where the \emph{positions} of the non-ze ...

2016

Converse Bounds for Noisy Group Testing with Arbitrary Measurement Matrices

Volkan Cevher, Jonathan Mark Scarlett

We consider the group testing problem, in which one seeks to identify a subset of defective items within a larger set of items based on a number of noisy tests. While matching achievability and converse bounds are known in several cases of interest for i.i ...

Ieee2016

Low-Rank Matrices on Graphs: Generalized Recovery & Applications

Pierre Vandergheynst, Nathanaël Perraudin, Nauman Shahid

Many real world datasets subsume a linear or non-linear low-rank structure in a very low-dimensional space. Unfortunately, one often has very little or no information about the geometry of the space, resulting in a highly under-determined recovery problem. ...

2016

MATHICSE Technical Report : A theoretical study of COmpRessed SolvING for advection-diffusion-reaction problems

Fabio Nobile, Simone Brugiapaglia

We present a theoretical analysis of the CORSING (COmpRessed SolvING) method for the numerical approximation of partial differential equations based on compressed sensing. In particular, we show that the best s-term approximation of the weak solution of a ...

MATHICSE2015

Indoor localization method and system

Martin Vetterli, Reza Parhizkar, Gilles Baechler

An indoor localization method for estimating the location of nodes (n1, n2), at least one node (n1) being connected to at least another node (n2) by at least two different channels (ch1, ch1′), comprising the following steps: measuring a distance between t ...

2015

Meta-analysis of incomplete microarray studies

Anthony Christopher Davison, Darlene Goldstein

Meta-analysis of microarray studies to produce an overall gene list is relatively straightforward when complete data are available. When some studies lack information, for example, having only a ranked list of genes instead of complete primary data, it is ...

Oxford University Press2015

Efficient Shape Priors for Spline-Based Snakes

Michaël Unser, Daniel Andreas Schmitter, Ricard Delgado Gonzalo, Virginie Sophie Uhlmann

Parametric active contours are an attractive approach for image segmentation, thanks to their computational efficiency. They are driven by application-dependent energies that reflect the prior knowledge on the object to be segmented. We propose an energy i ...

2015

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Matrice orthogonale

Vectorial scanning force microscopy using a nanowire sensor

Compressive PCA for Low-Rank Matrices on Graphs

ALS Scheme using Extent-based Constraints for the Analysis of Chemical Reaction Systems

Limits on Sparse Support Recovery via Linear Sketching with Random Expander Matrices

Converse Bounds for Noisy Group Testing with Arbitrary Measurement Matrices

Low-Rank Matrices on Graphs: Generalized Recovery & Applications

MATHICSE Technical Report : A theoretical study of COmpRessed SolvING for advection-diffusion-reaction problems

Indoor localization method and system

Meta-analysis of incomplete microarray studies

Efficient Shape Priors for Spline-Based Snakes

Graph Chatbot

Chattez avec Graph Search

Vectorial scanning force microscopy using a nanowire sensor

MATHICSE Technical Report : A theoretical study of COmpRessed SolvING for advection-diffusion-reaction problems

Compressive PCA for Low-Rank Matrices on Graphs

ALS Scheme using Extent-based Constraints for the Analysis of Chemical Reaction Systems

Limits on Sparse Support Recovery via Linear Sketching with Random Expander Matrices

Low-Rank Matrices on Graphs: Generalized Recovery & Applications

Efficient Shape Priors for Spline-Based Snakes

Indoor localization method and system

Converse Bounds for Noisy Group Testing with Arbitrary Measurement Matrices

Meta-analysis of incomplete microarray studies