Results 21 to 30 of about 245,161 (291)

Elements of dynamic parameters modification and sensitivity [PDF]

open access: yesFME Transactions, 2013
Structural modifications can cause changes in the matrices of some elements. Depending on the type of structure, or a desired change, a group of elements can be modified.
Trišović Nataša   +3 more
doaj  

A note on the eigensystem of the covariance matrix of dichotomous Guttman items

open access: yesFrontiers in Psychology, 2015
We consider the sample covariance matrix for dichotomous Guttman items under a set of uniformity conditions, and obtain closed-form expressions for the eigenvalues and eigenvectors of the matrix.
Clintin P Davis-Stober   +2 more
doaj   +1 more source

Eigenvector-spatial localisation [PDF]

open access: yesTellus 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   +2 more
openaire   +2 more sources

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

open access: yesIEEE 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   +2 more
doaj   +1 more source

Recursive solutions for Laplacian spectra and eigenvectors of a class of growing treelike networks

open access: yes, 2009
The complete knowledge of Laplacian eigenvalues and eigenvectors of complex networks plays an outstanding role in understanding various dynamical processes running on them; however, determining analytically Laplacian eigenvalues and eigenvectors is a ...
B. Bollobás   +8 more
core   +1 more source

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

open access: yesActa 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  

AN EIGEN-APPROACH FOR JOINT ESTIMATION OF DIRECTION-OF-ARRIVAL AND FREQUENCY OF AN UNKNOWN NUMBER OF SIGNALS

open access: yesJordanian Journal of Computers and Information Technology, 2020
An accurate method for estimating the direction-of-arrival (DOA) jointly with the frequencies of an unknown number of source signals is proposed using the Eigen-approach. Using the minimum eigenvalues of the autocorrelation matrices produces both the DOA
Thabet Mismar
doaj   +1 more source

Eigenvector dreaming

open access: yesJournal 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   +3 more
openaire   +4 more sources

Eigenvectors and Reconstruction [PDF]

open access: yesThe 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

Galerkin eigenvector approximations [PDF]

open access: yesMathematics of Computation, 2000
39 ...
openaire   +2 more sources

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