Results 21 to 30 of about 197,054 (272)
[OII] Emission, Eigenvector 1 and Orientation in Radio-quiet Quasars [PDF]
, 2000 We present supportive evidence that the Boroson and Green eigenvector 1 is not driven by source orientation. Until recently it was generally accepted that eigenvector 1 does not depend on orientation as it strongly correlates with [OIII]5007 emission ...
Antonucci R. +14 more
core +2 more sources
OPTIMIZATION OF 3D LOCAL ORIENTATION MAP CALCULATION IN THE MATLAB FRAMEWORK
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2015 This paper presents the development and evaluation of a new approach toward the optimization of 3D local orientation map calculation in the Matlab framework. This new approach can be detailed as: optimize eigenvector calculation for PCA analysis of X-ray
Ranya Al Darwich, Laurent Babout
doaj +1 more source
An Exact Method for Calculating the Eigenvector Sensitivities
Applied Sciences, 2020 Eigenvector sensitivities are often used in many engineering problems such as structural vibration control, optimization design, model updating and damage identification. So far, modal superposition method and Nelson’s method are the two main methods for
Qiuwei Yang, Xi Peng
doaj +1 more source
State of art: utilizing social network analysis in diverse fields
Publicaciones e Investigación, 2017 This paper shows an overview of the different concepts and techniques that are been used in social network analysis; also it shows new uses of SNA and different challenges that it is facing.In a first moment, it illustrates the way of representing the ...
Ibo Luis Cerra Escobar +1 more
doaj +1 more source
Convergence of Eigenvector Continuation [PDF]
Physical Review Letters, 2021 Eigenvector continuation is a computational method that finds the extremal eigenvalues and eigenvectors of a Hamiltonian matrix with one or more control parameters. It does this by projection onto a subspace of eigenvectors corresponding to selected training values of the control parameters.
Avik Sarkar, Dean Lee
openaire +3 more sources
Journal of Fluid Science and Technology, 2017 This study examines experimentally the vortex-induced vibration (VIV) of a mechanical system with two eigenmodes. A previous experiment setup was refined to enable the experiment, and was placed in a circulating water channel to submerge a movable ...
Yoshiki NISHI, Komei SAITOH
doaj +1 more source
Eigenvector localization in the heavy-tailed random conductance model [PDF]
, 2018 We generalize our former localization result about the principal Dirichlet eigenvector of the i.i.d. heavy-tailed random conductance Laplacian to the first $k$ eigenvectors. We overcome the complication that the higher eigenvectors have fluctuating signs
Flegel, Franziska
core +3 more sources
Eigenvector Distribution of Wigner Matrices [PDF]
, 2011 We consider $N\times N$ Hermitian or symmetric random matrices with independent entries. The distribution of the $(i,j)$-th matrix element is given by a probability measure $\nu_{ij}$ whose first two moments coincide with those of the corresponding ...
Knowles, Antti, Yin, Jun
core +1 more source
A One-Pass Approach for Slope and Slant Estimation of Tri-Script Handwritten Words
Journal of Intelligent Systems, 2018 Handwritten words can never complement printed words because the former are mostly written in either skewed or slanted form or in both. This very nature of handwriting adds a huge overhead when converting word images into machine-editable format through ...
Bera Suman Kumar +6 more
doaj +1 more source
Ulam's method for Lasota-Yorke maps with holes [PDF]
, 2013 Ulam's method is a rigorous numerical scheme for approximating invariant densities of dynamical systems. The phase space is partitioned into connected sets and an inter-set transition matrix is computed from the dynamics; an approximate invariant density
Bose, Christopher +3 more
core +2 more sources