Results 161 to 170 of about 22,526 (213)

Image Matching for UAV Geolocation: Classical and Deep Learning Approaches. [PDF]

open access: yesJ Imaging
Baykal F   +3 more
europepmc   +1 more source

Lanczos-type Methods for Continuation Problems

Numerical Linear Algebra with Applications, 1997
The authors introduce Lanczos type methods as fast solvers for continuation problems. The symmetric Lanczos method is modified, moreover, for indefinite linear systems. The presented algorithms are used for calculation of simple bifurcation points on the solution curve.
Chien, C.-S., Weng, Z.-L., Shen, C.-L.
openaire   +3 more sources

Transpose-free Lanczos methods

2020
The Lanczos methods studied in Chapter 8 have two shortcomings. First, they can suffer from breakdowns. Second, in each iteration we need to do a matrix-vector product with \(A^T\) (or \(A^*\)). In this chapter we study iterative methods, derived from those of Chapter 8, that do not need a multiplication with the transpose of A.
Gérard Meurant, Jurjen Duintjer Tebbens
openaire   +1 more source

Lanczos Propagation and Reflection Methods

Integrated Photonics Research, 1992
While wide-angle algorithms have recently been developed to describe the propagation of highly-divergent beams, only the first non-trivial wide-angle procedure, which is limited to beam half-widths below about 35 — 40°, can be efficiently implemented with standard numerical procedures.[1, 2] To circumvent this limitation, Lanczos recursion[3, 4] may be
David Yevick   +3 more
openaire   +1 more source

Lanczos-based fast blind deconvolution methods

Journal of Computational and Applied Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dykes, L.   +4 more
openaire   +2 more sources

Restarted block Lanczos bidiagonalization methods

Numerical Algorithms, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baglama, James, Reichel, Lothar
openaire   +2 more sources

Vector-Orthogonality and Lanczos-Type Methods

Numerical Algorithms, 2002
A Lanczos-type method, using formal vector orthogonality, is proposed for solving a linear system. An algorithm is given with a strategy being defined to change the dimension of vector orthogonality by increasing or decreasing the dimension, which allow for leading the algorithm and controlling the numerical problem.
openaire   +1 more source

A perturbative Lanczos method

Physics Letters A, 1991
Abstract A new version of the Rayleigh-Schrodinger perturbation theory with continued fractions is presented. Its main idea lies in the use of degenerate (finite-dimensional, exact) Lanczos bound states as its zero-order approximants. The structure and broad applicability of the new formulas is illustrated on the example V(r)= r 2 +λr 2
openaire   +1 more source

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