Results 21 to 30 of about 249,692 (322)

Discrete-time population dynamics on the state space of measures

Mathematical Biosciences and Engineering, 2020
If the individual state space of a structured population is given by a metric space S, measures μ on the σ-algebra of Borel subsets T of S offer a modeling tool with a natural interpretation: μ(T) is the number of individuals with structural ...
Horst R. Thieme
doaj   +1 more source

Eigenvector-spatial localisation [PDF]

Tellus A: Dynamic Meteorology and Oceanography, 2021
We present a new multiscale covariance localisation method for ensemble data assimilation that is based on the estimation of eigenvectors and subsequent projections, together with traditional spatial localisation applied with a range of localisation lengths.
Travis Harty, Matthias Morzfeld, Chris Snyder   +2 more
openaire   +2 more sources

Enhancing Lung Acoustic Signals Classification With Eigenvectors-Based and Traditional Augmentation Methods

IEEE Access
Identifying lung sound signal patterns is essential for detecting and monitoring respiratory diseases. Existing approaches for analyzing respiratory sounds need domain specialists.
Naseem Babu, Dayananda Pruthviraja, Jimson Mathew   +2 more
doaj   +1 more source

Second order accurate distributed eigenvector computation for extremely large matrices

, 2009
We propose a second-order accurate method to estimate the eigenvectors of extremely large matrices thereby addressing a problem of relevance to statisticians working in the analysis of very large datasets.
d'Aspremont, Alexandre, Karoui, Noureddine El   +1 more
core   +2 more sources

On a q-extension of Mehta's eigenvectors of the finite Fourier transform for q a root of unity [PDF]

, 2009
It is shown that the continuous q-Hermite polynomials for q a root of unity have simple transformation properties with respect to the classical Fourier transform.
Allaway Wm R, Andrews G E, Arik M, Askey R, Askey R A, Atakishiyev N M, Atakishiyev N M, Atakishiyev N M, Berndt B, Biedenharn L C, Dahlquist G, Gasper G, Koekoek R Swarttouw R F, Lidl R, Macfarlane A J, Matveev V B, Mesuma K Atakishiyeva, Natig M Atakishiyev, Serre J-P, Stein E, Terras A, Tom H Koornwinder   +21 more
core   +2 more sources

Eigenvector dreaming

Journal of Statistical Mechanics: Theory and Experiment
Abstract Among the performance-enhancing procedures for Hopfield-type networks that implement associative memory, Hebbian unlearning (HU) (or dreaming) strikes for its simplicity and lucid biological interpretation. However, it does not easily lend to a clear analytical understanding.
Benedetti, Marco, Carillo, Louis, Marinari, Enzo, Mézard, Marc   +3 more
openaire   +4 more sources

Eigenvectors and Reconstruction [PDF]

The Electronic Journal of Combinatorics, 2007
In this paper, we study the simple eigenvectors of two hypomorphic matrices using linear algebra. We also give new proofs of results of Godsil and McKay.
openaire   +3 more sources

Partial eigenvalue assignment problem of linear control systems using orthogonality relations [PDF]

Acta Montanistica Slovaca, 2006
The partial eigenvalue assignment is the problem of reassigning a part of the open-loop spectrum of a linear system by a feedback control, leaving the rest of the spectrum invariant.
Mohamed A. Ramadan, Ehab A. El - Sayed
doaj  

A New Fixed Point Result of Perov Type and Its Application to a Semilinear Operator System

Mathematics, 2019
In this paper, we present a new generalization of the Perov fixed point theorem on vector-valued metric space. Moreover, to show the significance of our result, we present both a nontrivial comparative example and an application to a kind of semilinear ...
Ishak Altun, Nawab Hussain, Muhammad Qasim, Hamed H. Al-Sulami   +3 more
doaj   +1 more source

Galerkin eigenvector approximations [PDF]

Mathematics of Computation, 2000
39 ...
openaire   +2 more sources