Results 1 to 10 of about 10,853,875 (318)

Universal hypothesis of autocorrelation function from Krylov complexity [PDF]

open access: yesQuantum Frontiers, 2023
In a quantum many-body system, autocorrelation functions can determine linear responses nearby equilibrium and quantum dynamics far from equilibrium.
Ren Zhang, Hui Zhai
doaj   +2 more sources

On the Autocorrelation Function of 1/f Noises [PDF]

open access: goldMathematics, 2022
The outputs of many real-world complex dynamical systems are time series characterized by power-law correlations and fractal properties. The first proposed model for such time series comprised fractional Gaussian noise (fGn), defined by an ...
Pedro Carpena, Ana V. Coronado
doaj   +2 more sources

An analytical process of spatial autocorrelation functions based on Moran's index. [PDF]

open access: yesPLoS ONE, 2021
A number of spatial statistic measurements such as Moran's I and Geary's C can be used for spatial autocorrelation analysis. Spatial autocorrelation modeling proceeded from the 1-dimension autocorrelation of time series analysis, with time lag replaced ...
Yanguang Chen
doaj   +2 more sources

Linear Prediction Using Refined Autocorrelation Function

open access: goldEURASIP Journal on Audio, Speech, and Music Processing, 2007
This paper proposes a new technique for improving the performance of linear prediction analysis by utilizing a refined version of the autocorrelation function.
Shimamura Tetsuya, Rahman M Shahidur
doaj   +3 more sources

Compressive estimation of a stochastic process with unknown autocorrelation function [PDF]

open access: green, 2017
In this paper, we study the prediction of a circularly symmetric zero-mean stationary Gaussian process from a window of observations consisting of finitely many samples.
Mahdi Barzegar Khalilsarai   +3 more
openalex   +3 more sources

Estimation of phonon relaxation time for silicon by means of using the velocity autocorrelation function of atoms in molecular dynamics [PDF]

open access: goldBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
Results of the ab initio molecular dynamics calculations of silicon crystals are presented by means of analysis of the velocity autocorrelation function and determination of mean phonon relaxation time.
B. Andriyevsky   +6 more
doaj   +3 more sources

On the effect of the ionizing background on the Lyα forest autocorrelation function [PDF]

open access: bronze, 2014
An analytical framework is presented to understand the effects of a fluctuating intensity of the cosmic ionising background on the correlations of the Ly{\alpha} forest transmission fraction measured in quasar spectra.
Satya Gontcho A Gontcho   +2 more
openalex   +3 more sources

The autocorrelation of the Möbius function and Chowla's conjecture for the rational function field in characteristic 2 [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
We prove a function field version of Chowla's conjecture on the autocorrelation of the Möbius function in the limit of a large finite field of characteristic 2, extending previous work in odd characteristic.
Dan Carmon
semanticscholar   +4 more sources

Yarn-Dyed Fabric Defect Detection Based On Autocorrelation Function And GLCM

open access: yesAUTEX Research Journal, 2015
In this study, a new detection algorithm for yarn-dyed fabric defect based on autocorrelation function and grey level co-occurrence matrix (GLCM) is put forward.
Zhu Dandan   +3 more
doaj   +2 more sources

Velocity autocorrelation function of a Brownian particle

open access: yes, 2011
In this article, we present molecular dynamics study of the velocity autocorrelation function (VACF) of a Brownian particle. We compare the results of the simulation with the exact analytic predictions for a compressible fluid from [T.S.
D. Chakraborty
semanticscholar   +4 more sources

Home - About - Disclaimer - Privacy