autocorrelation


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autocorrelation

A measure of how closely a signal in a time series resembles a time-delayed image of itself—periodic signals are highly autocorrelated; random signals are not.
References in periodicals archive ?
The level of autocorrelation in the data (high [rho] values, which lower the effective n) tends to increase as the time interval becomes smaller.
The technique that is proposed in this paper based on band-pass filtering of the original time domain signal using a band pass filter that centers on the region of high frequency energy, and demodulate the filtered signal by getting Envelope and Autocorrelation enhancement.
Thus, studies analyzing species richness should not ignore spatial effects, and sampling sites along elevational gradients should be distant enough from each other to ensure that spatial autocorrelation is minimal.
Data included in column 8 is used during radio transmission system selection based on the binary sequence analysis while applying the test of hypothesis with zero correlation coefficient between the bit autocorrelation function of the binary sequence analysed and standard bit autocorrelation function of binary sequence described in the database.
Null spatial autocorrelation implies that the EFE value for each country over the years does not follow any set pattern, whereby, the series of data referring to environmental fiscal effort present geographical localisation that would be similar to that obtained via a random assignation for each country i in the study area.
Significant clustering of Average New Leprosy cases detection rate in Nigeria, 2010-2014 using false discovery rate (FDR)--adjusted P values of the local indicator spatial autocorrelation Moran I statistic.
20 Simple maps of the IMR clearly indicate the concentration of the IMR and existence of the spatial autocorrelation.
2011) whereby the minimal segment length with negligible spatial autocorrelation (where [theta] [approximately equal to] [theta]') was identified prior to the inclusion of covariates.
Removing Autocorrelation in the Time Series--Statistically significant autocorrelation was found in the series for all flow variables at DLP but for only [Q.
For this purpose, both parametric (Augmented Dickey-Fuller test of Unit Root and Autocorrelation Test) and non-parametric tests (Phillips-Perron of unit root test and Runs test) are used.
With the increasing of the order and the offsets of the local autocorrelation function, the number of extracted features is increasing rapidly.