Randomized numerical linear algebra: Foundations and algorithms

PG Martinsson, JA Tropp - Acta Numerica, 2020 - cambridge.org
This survey describes probabilistic algorithms for linear algebraic computations, such as
factorizing matrices and solving linear systems. It focuses on techniques that have a proven …

An introduction to matrix concentration inequalities

JA Tropp - Foundations and Trends® in Machine Learning, 2015 - nowpublishers.com
Random matrices now play a role in many areas of theoretical, applied, and computational
mathematics. Therefore, it is desirable to have tools for studying random matrices that are …

Living on the edge: Phase transitions in convex programs with random data

D Amelunxen, M Lotz, MB McCoy… - … and Inference: A …, 2014 - ieeexplore.ieee.org
Recent research indicates that many convex optimization problems with random constraints
exhibit a phase transition as the number of constraints increases. For example, this …

Sparse signal processing concepts for efficient 5G system design

G Wunder, H Boche, T Strohmer, P Jung - IEEE Access, 2015 - ieeexplore.ieee.org
As it becomes increasingly apparent that 4G will not be able to meet the emerging demands
of future mobile communication systems, the question what could make up a 5G system …

Universality laws for randomized dimension reduction, with applications

S Oymak, JA Tropp - Information and Inference: A Journal of the …, 2018 - academic.oup.com
Dimension reduction is the process of embedding high-dimensional data into a lower
dimensional space to facilitate its analysis. In the Euclidean setting, one fundamental …

The squared-error of generalized lasso: A precise analysis

S Oymak, C Thrampoulidis… - 2013 51st Annual Allerton …, 2013 - ieeexplore.ieee.org
We consider the problem of estimating an unknown but structured signal x 0 from its noisy
linear observations y= Ax 0+ z∈ ℝ m. To the structure of x 0 is associated a structure …

A new perspective on least squares under convex constraint

S Chatterjee - 2014 - projecteuclid.org
Consider the problem of estimating the mean of a Gaussian random vector when the mean
vector is assumed to be in a given convex set. The most natural solution is to take the …

Beyond low rank+ sparse: Multiscale low rank matrix decomposition

F Ong, M Lustig - IEEE journal of selected topics in signal …, 2016 - ieeexplore.ieee.org
We present a natural generalization of the recent low rank+ sparse matrix decomposition
and consider the decomposition of matrices into components of multiple scales. Such …

Regularized gradient descent: a non-convex recipe for fast joint blind deconvolution and demixing

S Ling, T Strohmer - Information and Inference: A Journal of the …, 2019 - academic.oup.com
We study the question of extracting a sequence of functions from observing only the sum of
their convolutions, ie from. While convex optimization techniques are able to solve this joint …

Blind demixing and deconvolution at near-optimal rate

P Jung, F Krahmer, D Stöger - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
We consider simultaneous blind deconvolution of r source signals from their noisy
superposition, a problem also referred to blind demixing and deconvolution. This signal …