نتایج جستجو برای: variable autocorrelation statistical methods ultimately

تعداد نتایج: 2363820  

Journal: :Journal of Chemical Education 1999

Journal: :CoRR 2015
Sarah Marzen James P. Crutchfield

Identifying and quantifying memory are often critical steps in developing a mechanistic understanding of stochastic processes. These are particularly challenging and necessary when exploring processes that exhibit long-range correlations. The most common signatures employed rely on second-order temporal statistics and lead, for example, to identifying long memory in processes with power-law aut...

2012
Irina IRINCHEEVA Eva CANTONI Marc G. GENTON

We consider a spatial generalized linear latent variable model with and without normality distributional assumption on the latent variables. When the latent variables are assumed to be multivariate normal, we apply a Laplace approximation. To relax the assumption of marginal normality in favor of a mixture of normals, we construct a multivariate density with Gaussian spatial dependence and give...

Journal: :Studia mundi – economica 2021

The study uses different statistical methods to examine the change in territorial distribution and concentration of tertiary-educated population unemployed between 2001 2019. Among known regional inequality indicators measuring disparities, Dual index Hoover were used. With help location quotient (LQ), representation those with higher education relation average was explored represented at settl...

2012
S. S. Nimbhore G. D. Ramteke R. J. Ramteke

This paper deals with pitch estimation of spoken Devnagari vowels from the original speech signals. Devnagari vowels are playing the vital role in pronunciation of any word. Each vowel is classified as starting, middle and end according to the duration of occurrences in the word. The Devnagari script having 12-vowels and 34-consonants are used in some Indian language like Marathi. The Devnagari...

2013
Maria Dornelas Anne E. Magurran Stephen T. Buckland Anne Chao Robin L. Chazdon Robert K. Colwell Tom Curtis Kevin J. Gaston Nicholas J. Gotelli Matthew A. Kosnik Brian McGill Jenny L. McCune Hélène Morlon Peter J. Mumby Lise Øvreås Angelika Studeny Mark Vellend

Growing concern about biodiversity loss underscores the need to quantify and understand temporal change. Here, we review the opportunities presented by biodiversity time series, and address three related issues: (i) recognizing the characteristics of temporal data; (ii) selecting appropriate statistical procedures for analysing temporal data; and (iii) inferring and forecasting biodiversity cha...

Journal: :CoRR 2017
Yuhua Sun Tongjiang Yan Qiang Wang

Pseudo-random sequences with good statistical property, such as low autocorrelation, high linear complexity and large 2-adic complexity, have been used in designing reliable stream ciphers. In this paper, we obtain the exact autocorrelation distribution of a class of sequence with three-level autocorrelation and analyze the 2-adic complexity of this sequence. Our results show that the 2-adic co...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1996
B K Epperson T Li

Spatial structure of genetic variation within populations, an important interacting influence on evolutionary and ecological processes, can be analyzed in detail by using spatial autocorrelation statistics. This paper characterizes the statistical properties of spatial autocorrelation statistics in this context and develops estimators of gene dispersal based on data on standing patterns of gene...

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