Results 41 to 50 of about 196,426 (238)

Evaluating the functionality of agricultural systems: social preferences for multifunctional peri-urban agriculture. The “Huerta de Valencia” as case study

open access: yesSpanish Journal of Agricultural Research, 2014
The debate on the multifunctionality of agriculture and its connections with territorial policies are the basis of the most appropriate approach to legitimize public interventions in the agricultural sector.
Inmaculada Marques-Perez   +2 more
doaj   +1 more source

Eigenvector-Based Centrality Measures for Temporal Networks [PDF]

open access: yes, 2016
Numerous centrality measures have been developed to quantify the importances of nodes in time-independent networks, and many of them can be expressed as the leading eigenvector of some matrix. With the increasing availability of network data that changes
Clauset, Aaron   +4 more
core   +3 more sources

Eigenvectors of Tensors—A Primer [PDF]

open access: yesActa Applicandae Mathematicae, 2018
We give an introduction to the theory and to some applications of eigenvectors of tensors (in other words, invariant one-dimensional subspaces of homogeneous polynomial maps), including a review of some concepts that are useful for their discussion. The intent is to give practitioners an overview of fundamental notions, results and techniques.
openaire   +3 more sources

Lobby index as a network centrality measure

open access: yes, 2013
We study the lobby index (l-index for short) as a local node centrality measure for complex networks. The l-inde is compared with degree (a local measure), betweenness and Eigenvector centralities (two global measures) in the case of biological network ...
Campiteli, Monica G.   +4 more
core   +1 more source

Tree decomposition by eigenvectors

open access: yesLinear Algebra and its Applications, 2009
25 ...
Torsten Sander, J. W. Sander
openaire   +3 more sources

High dimensional normality of noisy eigenvectors [PDF]

open access: yesarXiv, 2020
We study joint eigenvector distributions for large symmetric matrices in the presence of weak noise. Our main result asserts that every submatrix in the orthogonal matrix of eigenvectors converges to a multidimensional Gaussian distribution. The proof involves analyzing the stochastic eigenstate equation (SEE) which describes the Lie group valued flow ...
arxiv  

The Female Population Growth Projection Year 2021 in Trenggalek Regency by Leslie Matrix Model on the Birth Rate and Life Expectancy

open access: yesBiology, Medicine & Natural Product Chemistry, 2017
This research aims to determine the number of female residents in Trenggalek Regency in 2021 based on data on birth rate and life expectancy. The use of eigenvalues and eigenvectors aims to determine the dividing age distribution by Leslie matrix model ...
Dewi Anggreini
doaj   +1 more source

An Analysis Method of Symplectic Dual System for Decagonal Quasicrystal Plane Elasticity and Application

open access: yesCrystals, 2022
The symplectic solution system of decagonal quasicrystal elastic mechanics is considered. Hamiltonian dual equations together with the boundary conditions are investigated by utilizing the principle of minimum potential energy.
Guangfang Li, Lianhe Li
doaj   +1 more source

Observations on the Computation of Eigenvalue and Eigenvector Jacobians

open access: yesAlgorithms, 2019
Many scientific and engineering problems benefit from analytic expressions for eigenvalue and eigenvector derivatives with respect to the elements of the parent matrix.
Andrew J. Liounis   +2 more
doaj   +1 more source

Localization and centrality in networks

open access: yes, 2014
Eigenvector centrality is a common measure of the importance of nodes in a network. Here we show that under common conditions the eigenvector centrality displays a localization transition that causes most of the weight of the centrality to concentrate on
Martin, Travis   +2 more
core   +1 more source

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