Results 1 to 10 of about 62,439 (166)

Universal hypothesis of autocorrelation function from Krylov complexity

open access: yesQuantum Frontiers
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

Autocorrelations of Vectorial Boolean Functions [PDF]

open access: yes, 2021
Recently, BarOn et al. introduced at Eurocrypt'19 a new tool, called the differential-linear connectivity table (DLCT), which allows for taking into account the dependency between the two subciphers E0 and E1 involved in differential-linear attacks. This paper presents a theoretical characterization of the DLCT, which corresponds to an autocorrelation ...
Canteaut, Anne   +6 more
openaire   +3 more sources

Functional spherical autocorrelation: A robust estimate of the autocorrelation of a functional time series

open access: yesElectronic Journal of Statistics, 2023
We propose a new autocorrelation measure for functional time series that we term spherical autocorrelation. It is based on measuring the average angle between lagged pairs of series after having been projected onto the unit sphere. This new measure enjoys several complimentary advantages compared to existing autocorrelation measures for functional data,
Yeh, Chi-Kuang   +2 more
openaire   +2 more sources

On the Autocorrelation Function of 1/f Noises

open access: yesMathematics, 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   +1 more source

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

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   +1 more source

Linear Prediction Using Refined Autocorrelation Function

open access: yesEURASIP 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   +2 more sources

Liver Backscatter and the Hepatic Vasculature’s Autocorrelation Function

open access: yesAcoustics, 2020
Ultrasound imaging of the liver is an everyday, worldwide clinical tool. The echoes are produced by inhomogeneities within the interrogated tissue, but what are the mathematical properties of these scatterers?
Jonathan J. Carroll-Nellenback   +3 more
doaj   +1 more source

Detection of Bolt Looseness Based on Average Autocorrelation Function

open access: yesShock and Vibration, 2021
Bolted connections are widely used in multiple engineering fields including aerospace and mechanical engineering due to their numerous advantages like the ability to bear relatively heavy loads, low costs, easy installation, and implementation.
Jigang Wu   +4 more
doaj   +1 more source

Impact of autocorrelation on functional connectivity [PDF]

open access: yesNeuroImage, 2014
Although the impact of serial correlation (autocorrelation) in residuals of general linear models for fMRI time-series has been studied extensively, the effect of autocorrelation on functional connectivity studies has been largely neglected until recently.
Mohammad R. Arbabshirani   +10 more
openaire   +4 more sources

Autocorrelation of ratios of $L$-functions [PDF]

open access: yesCommunications in Number Theory and Physics, 2008
Minor ...
Conrey, Brian   +2 more
openaire   +3 more sources

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