Distributions of Singular Values for Some Random Matrices

Details Distributions of Singular Values for Some Random Matrices Distributions of Singular Values for Some Random Matrices

1997-09-25

arxiv.org/abs/cond-mat/9709283v1

Physics

Condensed Matter

Statistical Mechanics

8 pages, Latex, uses psfig

Scientific paper

The Singular Value Decomposition is a matrix decomposition technique widely used in the analysis of multivariate data, such as complex space-time images obtained in both physical and biological systems. In this paper, we examine the distribution of Singular Values of low rank matrices corrupted by additive noise. Past studies have been limited to uniform uncorrelated noise. Using diagrammatic and saddle point integration techniques, we extend these results to heterogeneous and correlated noise sources. We also provide perturbative estimates of error bars on the reconstructed low rank matrix obtained by truncating a Singular Value Decomposition.

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