Results 21 to 30 of about 183,596 (199)
The Taylor Property in Bilinear Models
Revstat Statistical Journal, 2015 The aim of this paper is to discuss the presence of the Taylor property in the class of simple bilinear models. Considering strictly and weakly stationary models, we deduce autocorrelations of the process and of its square and analyze the presence of ...
E. Gonçalves +2 more
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Revista Brasileira de Engenharia Agrícola e Ambiental, 2012 No Brasil, a região do Distrito Federal é caracterizada pela presença de córregos e pequenos rios, o que torna importante a caracterização das vazões em microbacias.
Fernanda A. O. de Souza +3 more
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Noise Cancellation with Static Mixtures of a Nonstationary Signal and Stationary Noise
EURASIP Journal on Advances in Signal Processing, 2003 We address the problem of cancelling a stationary noise component from its static mixtures with a nonstationary signal of interest. Two different approaches, both based on second-order statistics, are considered. The first is the blind source separation (
Sharon Gannot, Arie Yeredor
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Mathematics, 2023 The definition of geostatistical domains is a stage in the estimation of mineral resources, in which a sample resulting from a mining exploration process is divided into zones that show homogeneity or minimal variation in the main element of interest or ...
Heber Hernández +3 more
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Stationarity, non-stationarity and early warning signals in economic networks [PDF]
Journal of Complex Networks, 2014 Economic integration, globalization and financial crises represent examples of processes whose understanding requires the analysis of the underlying network structure. Of particular interest is establishing whether a real economic network is in a state of (quasi)stationary equilibrium, i.e.
Tiziano Squartini, Diego Garlaschelli
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Analysis of the Local Quasi-Stationarity of Measured Dual-Polarized MIMO Channels
, 2014 It is common practice in wireless communications to assume strict or wide-sense stationarity of the wireless channel in time and frequency. While this approximation has some physical justification, it is only valid inside certain time-frequency regions ...
Ascheid, Gerd +3 more
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On the stationarity of Dynamic Conditional Correlation models [PDF]
, 2016 We provide conditions for the existence and the unicity of strictly stationary solutions of the usual Dynamic Conditional Correlation GARCH models (DCC-GARCH).
Fermanian, Jean-David, Malongo, Hassan
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Graph Variogram: A novel tool to measure spatial stationarity
, 2018 Irregularly sampling a spatially stationary random field does not yield a graph stationary signal in general. Based on this observation, we build a definition of graph stationarity based on intrinsic stationarity, a less restrictive definition of ...
Girault, Benjamin +2 more
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Asymptotic Analysis of Poverty Dynamics via Feller Semigroups
MathematicsPoverty is a multifaceted phenomenon impacting millions globally, defined by a deficiency in both material and immaterial resources, which consequently restricts access to satisfactory living conditions. Comprehensive poverty analysis can be accomplished
Lahcen Boulaasair +2 more
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Wavelet Density and Regression Estimators for Functional Stationary and Ergodic Data: Discrete Time
Mathematics, 2022 The nonparametric estimation of density and regression function based on functional stationary processes using wavelet bases for Hilbert spaces of functions is investigated in this paper. The mean integrated square error over adapted decomposition spaces
Sultana DIDI +2 more
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